- Author: Scheper Th. (ed.)
- Language: English
- Year: 2002
- Author: Scheper Th. (ed.)
- Language: English
- Year: 1999
- Author: Scheper Th. (ed.)
- Language: English
- Year: 2000
- Author: Scheper Th. (ed.)
- Language: English
- Year: 2000
- Author: Scheper Th. (ed.)
- Language: English
- Year: 2002