
- Author: Willem H. van Boom (editor), Gerhard Wagner (editor)
- Language: English
- Year: 2014

- Author: Gerhard Wagner
- Language: German
- Year: 2012

- Author: Gerhard Wagner [Hrsg.]
- Language: German
- Year: 1981

- Author: Gerhard Wagner [Hrsg.]
- Language: German
- Year: 1977

- Author: Gerhard Wagner [Hrsg.]
- Language: German
- Year: 1980

- Author: Gerhard Wagner [Hrsg.]
- Language: German
- Year: 1976

- Author: Gerhard Wagner [ed.]
- Language: German
- Year: 1975

- Author: Karin Ikas and Gerhard Wagner
- Language: English
- Year: 2009

- Author: Gerhard Wagner
- Language: German
- Year: 2011