Wege zu einem schlanken Informationsmanagement. - Walter Brenner; Volker Hamm (HMD Prax. Wirtsch., 1994)

The Role of Information Technology in Reengineering Procurement Processes. - Walter Brenner; Volker Hamm (ECIS, 1996)

The Net: Extinction Or Renaissance for Intermediaries - An Analysis of Core Competences in the Book Business. - Walter Brenner; Lutz M. Kolbe; Volker Hamm (ECIS, 1997)