- Author: Durant Waite Robertson
- Language: English
- Year: 2015
- Author: American Go Association
- Language: English
- Year: 1976
- Author: American Go Association
- Language: English
- Year: 1976
- Author: Heinrich Scheel (editor)
- Language: German
- Year: 1977
Bruchforschung
pdf
- Author: Heinrich Scheel (editor)
- Language: German
- Year: 1977
- Author: Armin Uhlmann
- Language: German
- Year: 1977
- Author: Heinrich Scheel (editor)
- Language: German
- Year: 1977
- Author: Heinrich Scheel (editor), Kurt Schwabe (editor)
- Language: German
- Year: 1977
- Author: Karlheinz Lohs, Gerhard W. Fischer, Woligang Dedek
- Language: German
- Year: 1977
- Author: Wolfgang Tutschke
- Language: German
- Year: 1977