- Author: Juergen B. Donges (editor), Stefan Mai (editor)
- Language: German
- Year: 2001
- Author: Ralph Raico, Jorg Guido Hülsmann, Gabriele Bartel, Pia Weiß, Christian Watrin
- Language: German
- Year: 1999
- Author: Rolf Hasse (editor), Josef Molsberger (editor), Christian Watrin (editor)
- Language: German
- Year: 1994
- Author: Juergen B Donges, Kai Menzel, Philipp Paulus
- Language: German
- Year: 2003
- Author: Juergen B Donges (editor), Andreas Freytag (editor)
- Language: German
- Year: 1998