
- Author: Петраков А.В.
- Language: Русский
- Year: 1999

- Author: Петраков А.П.
- Language: Русский
- Year: 1999

- Author: Петраков С.Н.
- Language: Русский
- Year: 2001

- Author: Новиков Д.А. Петраков С.Н.
- Language: Русский
- Year: 1999

- Author: Морозова Е.А. Петраков Н.С. Скворцов В.А.
- Language: Русский
- Year: 1976