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Die Medienkrise im Kontext allgemeiner Indikatoren
Friedrichsen, Mike, (2004)
Advertising pricing in German consumer magazine industry : an industrial economic analysis of market concentration, advertising prices, and their interrelations
Kurad, Astrid, (2008)
Multichannel Marketing - Potenziale des Digitaldrucks in der Unternehmenskommunikation
Coric, Ivica, (2004)