1
by Coenen, Christopher, Riehm, Ulrich
Published 2008
Nomos Verlagsgesellschaft mbH & Co. KG

2
by Riehm, Ulrich, Coenen, Christopher, Lindner, Ralf, Blümel, Clemens
Published 2009
Nomos Verlagsgesellschaft mbH & Co. KG

3
by Grunwald, Armin, Banse, Gerhard, Coenen, Christopher, Hennen, Leonhard
Published 2005
Nomos Verlagsgesellschaft mbH & Co. KG