- Author: Jörg H. Siekmann (Eds.)
- Language: English
- Year: 2014
- Author: Jörg H. Siekmann (Eds.)
- Language: English
- Year: 2014
- Author: Jörg H. Siekmann (auth.) Wolfgang Bibel Jörg H. Siekmann (eds.)
- Language: German
- Year: 1982
- Author: B. Radig (auth.) Jörg H. Siekmann (eds.)
- Language: English-German
- Year: 1981