S. Gottschalk, F. Rittmeier, and G. Engels, “Business Models of Store-Oriented Software Ecosystems: A Variability Modeling Approach,” in Business Modeling and Software Design, Lisbon, 2019, pp. 153–169.
LibreCat: /record/9275
DOI: 10.1007/978-3-030-24854-3_10

T. Göllner, J.-H. Schwarz, S. Gottschalk, and S. Sauer, “Verteiltes Warenwirtschaftssystem [Distributed Warehouse System].” 2019.
LibreCat: /record/14032

S. Gottschalk, F. Rittmeier, and G. Engels, “Intertwined Development of Business Model and Product Functions for Mobile Applications: A Twin Peak Feature Modeling Approach,” in Software Business,  Jyväskylä, 2019, vol. 370, no. 1, pp. 192–207.
LibreCat: /record/13138
DOI: 10.1007/978-3-030-33742-1_16