Software ecosystems: vendor-sided characteristics of online marketplaces. - Christoph Burkard; Tobias Draisbach; Thomas Widjaja; Peter Buxmann (GI-Jahrestagung, 2011)

New Sales and Buying Models in the Internet: App Store Modelfor Enterprise Application Software. - Stefan Wenzel; Wolfgang Faisst; Christoph Burkard; Peter Buxmann (MKWI, 2012)

Software Ecosystems. - Christoph Burkard; Thomas Widjaja; Peter Buxmann (Bus. Inf. Syst. Eng., 2012)

Evaluating the App-Store Model for Enterprise Application Software and Related Services. - Stefan Wenzel; Francesco Novelli; Christoph Burkard (Wirtschaftsinformatik, 2013)