- Author: Benedetti R., Risler Jean-Jacques
- Language: English
- Year: 1990
- Author: R Benedetti J J Risler
- Language: English
- Year: 1990
- Author: R Benedetti J J Risler
- Language: English
- Year: 1990
- Author: Alexandru Buium
- Language: English
- Year: 1994
- Author: Alexandru Buium
- Language: English
- Year: 1994