Advances in Software Economics A Reader on Business Models and Partnering Popp Karl Heftet / 2011 / Engelsk
System Dynamics and Long-Term Behaviour of Railway Vehicles, Track and Subgrade Popp Karl Innbundet / 2002 / Engelsk
System Dynamics and Long-Term Behaviour of Railway Vehicles, Track and Subgrade Popp Karl Heftet / 2010 / Engelsk
Profit from Software Ecosystems Business Models, Ecosystems and Partnerships in the Software Industry Meyer Ralf Heftet / 2010 / Engelsk
