- Author: Jozef M. van Brabant (auth.)
- Language: English
- Year: 1996
- Author: Jozef M. van Brabant (auth.)
- Language: English
- Year: 1991
- Author: Jozef M. van Brabant (auth.)
- Language: English
- Year: 1992
- Author: Jozef M. van Brabant (auth.)
- Language: English
- Year: 1987