- Author: Hans-Heiri Stapfer
- Language: English
- Year: 2009
- Author: Hans-Heiri Stapfer
- Language: English
- Year: 2008
- Author: Hans-Heiri Stapfer Joe Sewell
- Language: English
- Year: 1996
- Author: Hans-Heiri Stapfer John Lowe
- Language: English
- Year: 2002
- Author: David Gebhardt Darren Glenn Don Greer Hans-Heiri Stapfer
- Language: English
- Year: 2004
- Author: Hans-Heiri Stapfer
- Language: English
- Year: 2009
- Author: Hans-Heiri Stapfer
- Language: English
- Year: 1991
- Author: Hans-Heiri Stapfer
- Language: English
- Year: 1987
- Author: Hans-Heiri Stapfer
- Language: English
- Year: 2004
- Author: Hans-Heiri Stapfer
- Language: English
- Year: 2006