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Hoffmann und Campe Verlag, Hamburg, Germany
Dr. Andreas Siefke (*1967) graduated with distinction in business economics in 1993 - in 1997 he obtained the degree of doctor in this field. After his scientific collaboration at the Muenster University's Institute for Marketing he became manager for the Research Center in Bahnmarketing of the Academic Society for Marketing and Business Leadership, in Muenster. Since 2000 he works at HOFFMANN AND CAMPE Corporate Publishing in Hamburg, where he holds the position of the manager since 2004. (2010)