- Author: Георгиев В.И.
- Language: Русский
- Author: Milewski T.
- Language: English
- Author: Ferrell J.
- Language: English
- Author: Ebeling C.L.
- Language: English
- Author: Sławski F.
- Language: Polish
- Author: Mažiulis V.
- Language: Lithuanian
- Author: Чекман В.Н.
- Language: Русский
- Author: Dini Pietro Umberto.
- Language: English