Ahmed, Arbia BenArndt, AnkeBembenek, VanessaBüderbender, PhilippGorecki, AdalbertKriege, NilsRakov, SergejRex, MichaelSchrader, GebhardWagner, HenningWiesniewski, AndreYücel, Cengizhan2008-02-192008-02-192008-02-19http://hdl.handle.net/2003/2504510.17877/DE290R-8897de004study thesis