Davide Semenzin, Edwin Meulendijks, Wilbert Seele, Christoph Wagner, Sjaak Brinkkemper. Differentiation in Freemium: Where Does the Line Lie?. In Michael A. Cusumano, Bala Iyer, N. Venkatraman, editors, Software Business - Third International Conference, ICSOB 2012, Cambridge, MA, USA, June 18-20, 2012. Proceedings. Volume 114 of Lecture Notes in Business Information Processing, pages 291-296, Springer, 2012. [doi]
Abstract is missing.