- Author: Schwerdtfeger Gunther
- Language: German
- Year: 1990
- Author: Schwerdtfeger Stefan
- Language: German
- Year: 2018
- Author: Paula Schwerdtfeger
- Language: German
- Year: 2023
- Author: Hans Schwerdtfeger
- Language: English
- Year: 1962
- Author: Stephan Schwerdtfeger Ute Ilchmann
- Language: German
- Year: 1997
- Author: Hans Schwerdtfeger
- Language: English
- Year: 1994