author = { Helpman, Elhanan Krugman, Paul R. },

title = { Market structure and foreign trade increasing returns, imperfect competition and the international economy },

edition = { 5th printing } ,

publisher = {MIT Press},

isbn = {9780262580878},

isbn = {026258087X},

isbn = {0262081504},

isbn = {9780262081504},

keywords = { Markt , Aussenwirtschaft , Wirtschaftsbeziehungen , Industrie , Wirtschaftstheorie , Economies of scale , Wettbewerb , Marktstruktur , Unvollständige Konkurrenz , Multinationales Unternehmen },

year = {1993},

abstract = {Literaturangaben},

address = { Cambridge, Mass. , London },