The Internationalization of German Software-based Companies Sustainable Growth Strategies for Small and Medium-sized Companies - Picot, Arnold; Hess, Thomas; Hörndlein, Christian; Kaltenecker, Natalie; Jablonka, Claudius; Schreiner, Michel; Werbik, Alexander; Benlian, Alexander; Neuburger, Rahild; Gold, Bernhard (Springer International Publishing : Imprint: Springer, 2015)