J. Wouters, J. Ritmeester, A. Carlsen, S. Jansen, and K. Wnuk. International Conference on Software Business (ICSOB), volume 370 of Lecture Notes in Business Information Processing, page 31-45. Springer, (2019)
J. van Angeren, S. Jansen, and S. Brinkkemper. Software Business. Towards Continuous Value Delivery, volume 182 of Lecture Notes in Business Information Processing, Springer International Publishing, (2014)