- Author: Sveshnikov Evgeny.
- Language: English
- Author: Delchev Alexander Semkov Semko.
- Language: English
- Author: Kozul Zdenko Jankovic Alojzije.
- Language: English
- Author: Skoko Milan.
- Language: English
- Author: Kotronias Vasilios.
- Language: English
- Author: Cornette M. Libiszewski F.
- Language: English
- Author: Kasparov S.
- Language: English