Gottschalk S, Rittmeier F, Engels G. Intertwined Development of Business Model and Product Functions for Mobile Applications: A Twin Peak Feature Modeling Approach. In: Hyrynsalmi S, Suoranta M, Nguyen-Duc A, Tyrväinen P, Abrahamsson P, eds.
Software Business. Vol 370. Lecture Notes in Business Information Processing. Cham: Springer International Publishing; 2019:192-207. doi:
10.1007/978-3-030-33742-1_16