Editor(s): Klee, Andreas; Knieling, Jörg; Scholich, Dietmar; Weiland, Ulrike.- 2008. 109p.

Author(s): Heuson, Clemens.- 2013. 24p.

Editor(s): Borchard, Klaus.- 2008. 96p.

Author(s): Holzinger, Katharina.- 1997. 33p.

Author(s): Wittenberg, Reinhard; Wenzig, Claudia; Janik, Florian.- 2007. XII, 272p.

Author(s): Hein, Wolfgang.- 2009. 8p.

Author(s): Canzler, Weert; Franke, Sassa.- 2002. 62p.

Author(s): Geyler, Stefan; Bedtke, Norman; Gawel, Erik.- 2013. 56p.

Author(s): Koch, Cordelia.- 2002. III,47p.

Author(s): Beuter, Isabel