Monday, October 16, 2017

contribution of postmodern marketing thought

Since “postmodernism” has begun to spread among academics as a new philosophical and scientific concept, management theory has also witnessed, though with different tones in some of its components, a debate concerning a new interpretation of issues as well as of the discipline. This debate offers new horizons to the academics and could bring about some interesting developments as those experienced in other disciplinary fields. With this work, we try to interpret the epistemology of marketing, a specific part of management theory, by conducting an analysis of the literature as it has developed so far and by constantly creating links between the level of philosophical elaboration and that of marketing research. It is the enrichment that the research experiences, and not only that, witnessed by the researcher, brings to the knowledge of the individual and of the community. It is clear that the process of creation of knowledge is endless and unstoppable as the more the individual (and the community) is enriched, and therefore learns, the more he realises his/her lack of knowledge. Knowledge “calls” knowledge.
The body of marketing
The origins of marketing take their roots in the American management literature of the late Fifties and of the beginning of the Sixties, when some researchers started to investigate into some management practice and, above all, into the origin of the market success. Those articles are now considered the landmark of marketing and have established the main concepts upon which this field of human knowledge has been developing for many decades and is still today accepted (Felton, 1959; Borden, 1964). The concept of marketing mix was then defined. This concept has since been considered a pillar of this discipline thanks to its simplicity and the possibility it offered of liaising the concept of economic value (which is crucial in marketing) to the actual managerial action.
In the course of the years, these approaches have been object of a constant process of systematisation and refining in order to define tools and technique to meet the needs of the market and, at the same time, those of the manager. This process has strongly contributed to the spreading of the discipline, thus creating a language universally shared and recognised as principles of Marketing Management by the academic community, by that of the practitioners and, last but not least, by undergraduate and postgraduate students. Customer orientation is thus the management philosophy which legitimises marketing actions and makes its ensemble coherent and harmonious.
Since the Seventies, this definition of marketing has met a growing, rapid and general consensus, thus transforming it to an evergreen or, in a “marketing megalomania” or even in a “Kotlerite” (Brown, 2002) as defined by the critics. The considerable simplicity of use of marketing mix, which was initially created to translate the marketing concept into operative terms, has been one of the main reasons of the great diffusion and credibility of marketing as a discipline on a global scale.
The perceived need of improving the effect of marketing policies, in a context whose evolution is increasingly fast and less intelligible, have necessarily induced researchers to increase their specialisation, thus becoming great experts of single tools and aspects of marketing. The evolutionary trend of marketing contributions has been fostered by the editorial choices of A Journals which tend to publish very specialised papers, supported by solid empirical analysis, but which turn out to be scarcely comprehensive. For this reason, they have been also critically labelled as Journal of Marketing Obscurity (Piercy, 2000; Baker, 2001).
If on the one hand this trend tends toward a specialisation of competencies and allows the discipline to progress in a “scientific” way, on the other hand there is a considerable risk of losing sight of the conceptual frame of reference of the domain in which such competencies are applicable. Owing to this tendency also, marketing has been the object of strong criticism in the course of the time, which nevertheless has not changed its initial general approach and has only affected the following phase of its evolution. This relatively simplistic approach to marketing has transformed both the general theory of marketing and the consumers themselves into victims. Consumers have been preferably reduced to mere numbers (that is quantitative data) by marketing operators, not to mention university students who have been forced to learn the principles of marketing as a simple recipe book made of ingredients that can be mixed and formulas (which most of the time are quite rigid) that can be applied according to the circumstance. In most businesses, many marketing activities are still today an exclusive task of some specialists who are considered the only responsible for the firm orientation and who only have to apply formulas and recipes learned in their education and refined by practice (whose partial dynamic and heterogeneous matrix has been recognised) Dissatisfaction toward this situation has started to manifest in a plurality of forms: from consumerism to feminism, sociological incursions and so on. They generally are very fragmented and little systematic trends, with the exception of two trends which have acquired an identity in their own right: relationship marketing and experiential marketing.
Criticism directed at marketing
The scientific advancement proceeds in the domain of human knowledge through what is now a standard process: theory, criticism and new theory. Marketing follows this general approach as well. In practical terms, this means that every contribution of marketing – as for every kind of discipline – starts with the analysis of literature, pinpoints a critical point due to a poor correspondence between theory and reality, and continues the reconstruction of knowledge for that specific area, thus contributing to the improvement of the knowledge of society.
Within marketing literature, it is possible to trace some critical approaches that share common features and give rise to actual movements for the refounding of the discipline. In particular, the main trends which have addressed marketing with strong criticism are two: relationship marketing and experiential marketing. They both have accused the discipline of involution, and of being devoted only to modelling of interpretation schemes of reality which have proved to be too far from it and were therefore not suitable to provide an exhaustive and generalizable explanation.
Chronologically, the first trend to cause a crisis within the discipline has been later called relationship marketing. During the Seventies, a part of marketing literature started to question the object of the discipline and its extendibility to other realities. In particular, the Swedish School of Industrial Marketing and the Nordic School of Services have contemporarily criticised marketing by maintaining that it adjusted well to the exchange relations of the mass consumption goods market, for which it was initially studied, but lost analytical and interpretative effectiveness when used exactly in the same way in other kinds of situations, especially in the industrial goods and service industry.
Mass consumption goods market is characterised by a strongly atomistic demand in which the personal features of the purchaser lose relevance and give space to anonymous and homogenous expectations. These can be analysed, in the most sophisticated cases, through segmentation techniques that are sometimes quite refined.
According to this scheme, the consumer is clearly passive and is subjected to the company policy without the possibility of affecting it in any way. The only possible action is the choice among alternatives of a predetermined supply. Exchanging power is therefore asymmetric and unbalanced: the single purchaser does not have decisional weight as his/her contractual force is proportioned to the percentage of his/her purchase in relation to the total turnover of the company and is therefore almost nil. According to the representatives of the “relationship” vision, the above described situation is considerably different in the industrial goods and service market. The peculiar features of this industry make it a different kind of market altogether in which the customer retains a particular and active participation and emerges as a consumer, producer and production resource. This calls for a reconsideration of marketing. If, as far as the market of mass consumption goods is concerned, the literature had put the exchange at the centre of the relation between demand and supply, and consequently at the centre of the analysis too, the new reflections which had been developing between the Seventies and the Eighties replaced the concept of exchange with that of relationship, that is the relationship that is established (in a more or less continuous way) between the purchaser and the seller: in analysis this is what really counts and not the single exchange act (which is often sporadic). Both the Swedish School of Industrial Marketing and the Nordic School of Services stressed how crucial the role played by the long term perspective is in the management of these markets. From this common point, both schools have independently developed their line of thought: industrial markets researches have focused mainly on the relations among companies, in particular on the role of trust and on the concept of relationships network (Håkansson, Östberg, 1975; Håkansson, 1982; Jackson, 1985; Hallén, Sandström, 1991; Ganesan, 1994; Morgan, Hunt, 1994; Doney, Cannon, 1997; Smith, Barclay, 1997; Duncan, Moriarty, 1998). Services researchers have concentrated on the differences in services in relation to goods and in particular on the continuous and necessary interaction between producer and consumer (Berry, 1980; Normann, 1985; Turnbull, Valla, 1985; Grönroos, 1991; Grönroos, 1994; Vavra, 1995). Moreover, in the course of the time, the importance of the relationship approach has spread in the consumer markets as well, thus making it necessary to consider the consumer perspective in all marketing choices. In the light of the specificity of the new analysed contexts, these authors have highlighted the weak points of the traditional approach of marketing, and defined it “traditional marketing” or the “traditional paradigm” of marketing, which does not result suitable in the contexts in which the firm can pinpoint the counterpart and treat it individually.
The second and important criticism to “universal” marketing was put forward by the trend of experiential marketing, some years later. The experiential interpretation of consumer behaviour started at the beginning of the Eighties in contrast with the traditional and prevailing view of studies of consumer behaviour whose first contributions date back to the Sixties and constitute what the experiential authors consider an utilitarian view (which is still today the major research trend within consumer behaviour).
Since the middle of the Eighties, some researchers have started to suggest an extension of the consumer behaviour interpretation, highlighting some limits of the utilitarian view of thought, such as the thesis of univocal rationality of the individual (Hirschman, Holbrook, 1982; Holbrook, Hirschman, 1982). By focusing on the mere act of purchasing, the utilitarian view has highlighted the rational component that leads the purchaser toward the resolution of the decisional problem faced with – a problem of choice among product alternatives. Resolution of the decisional problem is, in fact, an area which can be easily object of a rationalistic interpretation of consumption, and especially of a sophisticated modelling which becomes sometimes exasperated. Therefore, if on the one hand consumer behaviour researchers have acquired a considerable store of knowledge concerning the issue, on the other they have almost completely neglected all the other aspects of consumption which do not have a rationalistic component, especially the interaction between consumer – and not purchaser – and product. This is the real experience of consumption whose definition is, by nature, elusive and difficult.
Although the experiential view openly criticised traditional marketing only in 1999 (Schmitt B., 1999), the first criticism attacks could actually be dated back to 1982 when Hirschman and Holbrook carried out an initial comparison between the traditional and the experiential approach to the study of consumer behaviour. The two researchers, who are the pioneers of this trend of study, which has slowly encountered agreement and support in the course of the years, have ascribed the differences of the two approaches to the mental construction used, to the categories of the analysed products, to the use of product and finally to the consideration of individual differences among individuals. They have carried on this comparison by defining the essential features of the experiential interpretation of consumer behaviour. Criticism to the traditional approach concerns in particular the thesis of rationality and utilitarianism of consumer. According to the traditional theorists of consumer behaviour, founders of the traditional approach, the behaviour of the consumer is regulated by a general rationality which allows an easy resolution of every decisional problem, in particular the purchasing decision, in order to pinpoint the supply which maximises the utility for consumer. In this sense, the object of study of these researchers is the decisional process which leads an individual to make a specific purchasing choice, with the final objective of creating, with the same process, a universal model of reference. It is clear that the origins of such interpretation of consumer behaviour could be traced to the utilitarian vision of the general economics theory (Sherry, 1991).
Seventeen years later, Schmitt (1999) resumes the same process of comparison analysis by slightly modifying the categories compared and especially by highlighting once more the contrast between the traditional view and the emerging experiential one. In Schmitt’s contribution, however, the comparison analysis regards traditional marketing, expression that seems to define the ensemble of principles, models and tools of marketing management. In any case, the experiential view develops initially in an antithetical way in relation to the  prevailing trend, thus constituting a real reaction to the traditional model of consumer behaviour and aimed at a revision of models and tools in order to improve adherence to reality. It is, in fact, with the objective of studying the consumption behaviour of hedonistic products (considered as non strictly “rational”) that the concept of experience is defined, making the importance of individual emotions emerge (Carù, Cova, 2002).
Modernism and postmodernism
Although the term modernism refers to a system of thought that has developed in the course of the last four centuries, its actual definition can be traced to the last decades, when a new thought, postmodernism, emerged, thus contrasting with the precedent one. In order to understand the postmodern system of thought, whose unsettling effects are being delivered to every aspect of human knowledge, it is necessary to start with the analysis of modernism. Modernism is the vision of the world which imprinted the human action in the modernity era. The latter is conventionally said to have started with the Industrial Revolution and experienced its highest moment between the Nineteenth and the Twentieth Centuries. During these centuries, an extraordinary development of western societies was witnessed : since the second half of the Eighteenth Century, the European continent has enjoyed a period of great stability and wellbeing. The numerous innovations, the great scientific and geographic discoveries, the demographic growth, that took place in that period, gave a new impulse to the economy (from the industrial sector to the agriculture sector) and fostered a diffused and generalised wellbeing, thus stimulating growth and development of the populations. In Europe, the First Industrial Revolution, more than the second one, gave rise to a process of wellbeing and improvement of the general living standards which seemed unstoppable. The machine was considered the solution to the problems of humanity which, if on the one hand was freed from the servile oppression of physical work, on the other one was elated by a surge of wellbeing which had its expression in the possession of goods whose physicality was the tangible sign of their existence. In a geo-political context of stability and economic prosperity, the twists and turns of hope were superseded by the certainty of optimism. First the members of the Enlightenment and then those of the Positivism movements were convinced that with the support and guide of rationality only, humanity could reach higher levels of economic and social wellbeing and, therefore, of happiness, thus building a fair society and dominating nature (Best, Kellner, 1997). It all took the form of a continuous and linear process of progress of society, made possible and justified by rationality. The human thought was obviously affected by this approach and resulted in “modernism” which gathers the philosophical currents of thought of Neopositivism, Logical Empiricism, Logical Positivism and Neo-empiricism: dating back to Descartes and Kant, Smith, Locke and Hume, the members of the Positivism movement are generally considered the pioneers of modernism which received a considerable contribution from Newton research (Cobb, 1990; Abbagnano, 1995). According to the modern thought, machine and science have the same role: they are both at the service of the individual. Machine allows to reach an economic wellbeing whereas science contributes to the social prosperity. They both seem to be led by reason, by an omniscient rationality, which is able to reach certainties, knowledge of reality and therefore the truth. In the modern perspective, the recognised ability of the individual to understand nature, reality and its truths, allowed him to intervene on the state of things and to guide and improve them. Thinkers and researchers’ attention was therefore aimed at defining the laws regulating economic and scientific phenomena in order to understand their applications allowing, above all, their replication and improvement (Chiurazzi, 1999). In this sense, history was considered a linear evolution of society which proceeded through a continuous process of accumulation, and therefore, of progress. On the contrary, everything that seemed foreign to the evolutionary logic did not retain any interesting secret to be discovered and was, therefore, neglected. A finalised pragmatism dominated scientific analysis and its disciplines. Knowledge advanced toward reality and truth from which laws replicating repeatable and perfectible phenomena, and therefore suitable codes of conduct, were derived. Knowledge was aimed at “good” as it was fostered by the certainty of truth of the real. The will of reaching increasingly higher levels of wellbeing necessarily extended the concept of science to every discipline of knowledge: the mere application of the “scientific” method transformed every discipline into Science. At the beginning of the Twentieth Century, in fact, with the birth of psychology, sociology and psychoanalysis, the rationality of the individual is further valued and emphasised; in those years, modernism established as the prevailing trend and was considered an uncontested point of reference for every science. In the light of the breakthroughs obtained by humanity, the modern term has acquired strongly positive meanings, thus coinciding with the term “advanced”. Today, instead, the term modern indicates a past era that has been ending, at least for those who are more sensitive to social change (Cobb, 1990).
 In the second half of the Nineteenth Century, some philosophers – Kierkegaard, Nietzsche and Heidegger above all – started to doubt the inflexible faith of their contemporaries in rationality and in the ability of defining, circumscribing and knowing the truth (Jackson, 1996; Best, Kellner, 1997). The very same meaning of truth lost its immanent sense of holistic and salvific heurism, which had distinguished it in the previous thought. Although it was only an opposing trend at the time, their thought emerged and developed in the reflections of a group of French philosophers connected with the Poststructuralism – Derrida, Foucault, Lyotard and Baudrillard to mention the most famous ones– that are today known to have been the first postmodernism theorists (Best, Kellner, 1991; Williams, 1998; Chiurazzi, 1999). It was only during the Eighties, however, that their thought began to spread all over the world and started to encounter new followers such as the American philosopher Rorty. In Kierkegaard’s thought there was already a strong criticism addressed to the faith in human rationality as well as to every reflection aimed at knowing the real and the true. These concepts, according to Kierkegaard, imprison humanity and delude it to possess certainties, thus destroying feelings, inspiration and spontaneity. Those constitute the essential part of human beings and of their inclination toward God. In this perspective, Kierkegaard called for the role that irrationality, spontaneity and subjectivity play in making a human being, and that  the prevailing thought reduced to a series of rules and norms which limit his/her potential, thus causing spiritual frustration and alienation. Kierkegaard demands the rebirth of inner passion and spirituality which motivate individual actions and unify individuals. It is a clear reference to Christ’s spiritual Passion as a unifying force for all humanity, which always and in any case reigns over rationality. Reference to the Christian religion allows the philosopher to consider the subjective passion as a different concept of truth, transformed in daily life. According to Kierkegaard, religion redemption replaces the exasperated truth of the real as a principle of life. In Kierkegaard’s thought, passion and rationality, feelings and calculation, instinct and reasoning are in constant opposition and synthesise the contrast between the individual and the machine, spirit and physicality (of the individual and things).
Nietzsche’s criticism concerning modern thought is even stronger as it lacks any religious reference. Nietzsche extols individuality, its power and autonomy in strong contrast with any form of aprioristic, immanent, rational, definitive, and in any case salvific, ideology. According to the philosopher’s perspective, any ideology is nothing but an attempt of the individual to protect himself/herself from the daily course of life and is a false source of truth and certainty. Once the deception of ideology is revealed, God ceases to exist too, thus every faith tracing everything to a unique explanation vanishes (Chiurazzi, 1999). Rationality, modern science and its utility in life, the search of the truth, objectivity – all concepts exalted by the Enlightenment and Positivism movements– are object of a strong attack by the philosopher. This attack will find a resolution in postmodernism. There are no eternal truths, nor demonstrable or univocal truths. Everything should be contextualised to the place and to the historical period. Metaphysics, the idea of a permanent knowledge and of a transcendental reality, are nothing but constructions that are created to alleviate human sufferance, and prevent the individual from fully accomplish his/her capacities and of experiencing the true sense of his/her life which is made of opposing forces and passions. At the same time, there is not a unique and absolute truth, but only perspectives (visions) of every individual concerning different events. Moreover, these perspectives need to be relativised to that individual, to the moment and to the historical and social context. According to the philosopher, true knowledge is the simultaneous existence of a multiplicity of interpretations, each of which is the result of a particular perspective that is essential and should therefore be valued; this manifold knowledge leads the individual to the appreciation of difference. However, it is also the result of a long process requiring considerable efforts and will of knowledge, an unappeasable and humble desire to know, where the knowable is endless as every knowledge is source of other consequent researches and knowledge. Knowledge generates knowledge. Nietzsche also reconsiders the concept of subject and interprets it as a mere idealised construction which encapsulates a multiplicity of emotions, thoughts, ideas and stimuli created by modern thinkers to delude individuals to have an identity and to fictitiously remove them from the anonymous mass in which they live. In this situation, humanity can advance but only thanks to the efforts of individuals who are free and open to knowledge, who are able to liberate their individuality and creativity and are not afraid of not possessing a truth. The truth does not exist. Individual interpretations of the real do, but failure of possessing the truth, if perceived and accepted, is the strength and the inspiration that makes knowledge possible. Through the knowledge of the new, the individual questions him/herself, encounters risks but can find fulfilment.
The third father of postmodernism is Heidegger who can be considered an essential point of reference for the most recent postmodern thought. As a matter of fact, Heidegger, is one of the major critics of the basic thesis of modernism and one of the philosophers that have most influenced contemporary philosophy. His thought developed around the question of being. This issue allowed him to face several issues and to detach himself from the prevailing modern thought. It is not surprising that he chose to focus on issues that philosophy of that time neglected and took them for granted, almost obvious. In his thought, Heidegger distanced himself from the traditional concept of truth – it is true what correspond to reality – and considers freedom the original truth. The modern notion of knowledge and of being appears, therefore, to be the result of the dominance and power of individual over another  individual. Heidegger criticised the interpretation of theoretic conceptualisation as the only way toward knowledge by highlighting that primary knowledge of the individual is not conceptual at all and that it is not possible to make everything the individual knows completely explicit. Heidegger gave to art and poetry, neglected by the modern thought, a particular meaning as he considered them an alternative way of learning and therefore of knowing. At the same time, Heidegger defied the modern distinction between subject and object as objectivity is a result of an interpretation as well. Moreover, according to Heidegger metaphysics cannot be considered a branch of philosophy as it is, instead, a global perspective which concerns every human activity. In this sense, in Heidegger’s thought, language is superior to the individual as it is not a simple means of communication as considered by modernism. It is a privileged manifestation of being. Language is the extension of being and is therefore a way of being in its own right.
From a social point of view, Heidegger accused modernity of having transformed peoples in amorphous masses and of having levelled their tastes, ideas, languages and habits through a constant process of homogenisation which eliminated every manifestation of individuality. Truth and knowledge are searched at the expense of the individual specificity which is, instead, his/her expression and richness. This evolution is heavily supported by the modern technological development which, in Heidegger’s perspective, only creates powerful tools of dominance over individuals who are considered mere resources that can be replaced (Best, Kellner, 1997) and surrogated by machines–to which they are reduced. As a result of his ideas and critiques concerning modernism, Heidegger does not offer an unifying system of thought, but only fragmented reflections concerning some issues (Clark, 2002), parts of a truth to be invented and not discovered.
The thoughts of those philosophers, sometimes fragmented, that constituted an opposing trend during the Nineteenth Century, became an actual system of thought during the following century, when historical events highlighted the frailty of human certainties. Political conflicts and crises, world wars, the fall of political blocks and nations, the weakening of social groups and family, the proliferation of impersonal and standardised communication technologies, social dissatisfaction are all phenomena which characterise postmodernity and have undermined the idea of political stability and of possibility of a univocal convergence of different and multiple interests. At the same time, they have imparted new vigour to the criticism of the precedent philosophers and started a process of revision of the idea of progress, in the light of the evidence that the objective of a minimal level of wellbeing, common to all social classes, cannot be achieved and that is, on the contrary, the result of a concept that can be historicised relative and questionable, certainly not absolute: postmodernism “refers to the consistent deconstructing of the entire program of early modernism” (Cobb, 1990, p.150).
Despite the benefits induced by the development achieved thanks to biotechnology, to the economic globalisation, to the information highways and to the new genetic technologies, the current situation is uncertain and discriminating. Apart from few rich peoples, most of the world population is poor, unemployed and alienated. The world is full of contradictions, increasingly unsecured, dissatisfied and deprived of any certainty: certainty has become a good in its own right. During the Sixties, the voices of Gilles Deleuze, Roland Barthes, Jean Baudrillard and Julia Kristeva, started to rise in unison against the certainties of rationality and reported the failure of the Enlightenment movement and of Descartes’ subject (Best, Kellner, 1997). Few years later, the poststructuralists’ thought became part of postmodernism, whose term can be attributed to Charles Jenks.
The word “postmodernism” does not contain a precise meaning, and refers to many fragmented cultural phenomena, to the extent that some have suggested the need of using the plural and therefore of referring to “postmodernisms” in line with the postmodern spirit (Featherstone, 1991; Brown, 1994; 1995; 1997; Chiurazzi, 1999). In spite of that, it is  possible to recognise in this complexity, fragmentation and even unknowability of reality, that was so far defied by modernism, the central element of the new philosophy (Cova, 1996). The very same concept of reality is then questioned together with that of truth. More generally, it is possible to suggest that postmodernism doubts any certainty of modernism (Cobb, 1990). As a matter of fact, each philosopher has developed his/her own thought in a specific way. Deconstructionists, in particular Derrida and Lyotard, emphasised the concept of difference and highlighted its link with language in such way that difference and language are complementary (Chiurazzi, 1999; Best, Kellner, 1997) Lyotard, specifically worked on the relationship between fragmentation and globalisation and defined the features of the postmodern condition (Williams, 1998). Vattimo (1983) focused his attention on the critique of rationality, and eventually defied the possibility of identity and opted for a celebration of difference and tolerance that was a “week thought”, in fact. Bocchi, Ceruti, Morin and others developed the theory of complexity, that is the celebration of multiformity as the basis of the world whose ambiguity and confusion makes it impossible for science to develop an interpretation scheme which can be valid always and in absolute terms (Bocchi, Ceruti, 1985). Foucault concentrated on the subject and denounced its submission to society and to its false constructions. He considered the subject a mere construction which indicates unity and identity, a result of social logic and rules. Rorty analysed western philosophy and defied its role within the political life of society, which results to be lacking its own critical interpretative conscience and therefore searched original certainties.
All these trends of thought, though with their own peculiarities, claimed the validity of the differences among historic periods, geographic places and single individuals. The idea of the existence of a linear development of history leading to a situation of an increased wellbeing and emancipation for humanity in the course of the time, was strongly rejected. There is no core, no structure to be known. Every single thing cohabits with the other, without a precise aprioristic and absolutist meaning. The end of universalism, fundamentalism, hierarchies and boundaries was declared and, at the same time, contingence and diversity was exalted (Firat, Venkatesh, 1993; 1995). The individual is elated by the thought of dominating the machine and of having been freed by the servitude of work. However, it is the machine that dominates the individual, thus defying his/her own specificity and depriving him/her of the freedom of being different, of being him/herself. As long as the individual can be reduced to a machine, s/he has no qualities.

Reference: 
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.200.8440&rep=rep1&type=pdf
Stefano Podestà Università L. Bocconi Michela Addis
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.509.5508&rep=rep1&type=pdf