- Author: Steuck Heinz-Ludwig
- Language: German
- Year: 1967
- Author: Senger Hans Günther
- Language: German
- Year: 1963
- Author: Selmer Peter, Gersdorf Hubertus
- Language: German
- Year: 1994
- Author: Schroeder Roland
- Language: German
- Year: 1953
- Author: Sabel Hermann
- Language: German
- Year: 1965
- Author: Rusconi Gian Enrico, Woller Hans
- Language: German
- Year: 2006