Chachaj, AdamFrenzel, DavidGarstka, JensGriehsel, LarsHasebein, AnkeHüntler, TimoPetke, MatthiasRabe, GarvinRuppelt, MarkSchowe, BenjaminVossebein, DennisZimmermann, Zimmermann2007-07-312007-07-312007-07-31http://hdl.handle.net/2003/2452110.17877/DE290R-9017de004study thesis