- Author: Christopher Clark, Norbert Juraschitz, Klaus-Dieter Schmidt, Andreas Wirthensohn
- Language: German
- Year: 2023
- Author: Klaus M. Schmidt
- Language: German
- Year: 1994
- Author: Klaus M. Schmidt (editor)
- Language: German
- Year: 1993
- Author: Klaus M. Schmidt
- Language: German
- Year: 1981
- Author: Professor Dr. Klaus D. Schmidt Dr. Wolfgang Macht Dr. Klaus Th. Hess (auth.)
- Language: German
- Year: 2005
- Author: Fritz Klaus, Hansen-Schmidt Anja, Kiely Brendan, Reynolds Jason
- Language: German
- Year: 2016
- Author: Klaus D. Schmidt
- Language: English
- Year: 1989
- Author: Klaus M. Schmidt Ingrid Schmidt (auth.)
- Language: German
- Year: 2001
- Author: Michael Radtke Klaus D. Schmidt Anja Schnaus (eds.)
- Language: English
- Year: 2016