- Author: Ixaru Liviu Gr
- Language: English
- Year: 1984
- Author: Liviu Gr. Ixaru
- Language: English
- Year: 1984
- Author: Kazimierz Sobczyk (auth.)
- Language: English
- Year: 1991
- Author: Karel Rektorys
- Language: English
- Year: 1982
- Author: Zofia Szmydt Bogdan Ziemian (auth.)
- Language: English
- Year: 1992
- Author: J. Alajbegović J. Močkoř (auth.)
- Language: English
- Year: 1992
- Author: Adrian V. Gheorghe (auth.)
- Language: English
- Year: 1990
- Author: P. S. Bullen D. S. Mitrinović P. M. Vasić (auth.)
- Language: English
- Year: 1988
- Author: Michal Greguš (auth.)
- Language: English
- Year: 1987
- Author: Marián Vajteršic (auth.)
- Language: English
- Year: 1993