- Author: Armin Töpfer (auth.)
- Language: German
- Year: 2009
- Author: Armin Töpfer (auth.)
- Language: German
- Year: 2010
- Author: Professor Dr. Armin Töpfer (auth.)
- Language: German
- Year: 2005
- Author: Armin Töpfer (auth.)
- Language: German
- Year: 2012
- Author: Professor Dr. Armin Töpfer (auth.)
- Language: German
- Year: 2003
- Author: Armin Töpfer (auth.) Prof. Dr. Armin Töpfer (eds.)
- Language: German
- Year: 1993
- Author: Professor Dr. Armin Töpfer (auth.)
- Language: German
- Year: 2004