Pod kolpakom kontrrazvedki : taĭnai︠a︡ podopleka perestroĭki /
Shironin, Viacheslav.
Moskva : Palei︠a︡,
1996.
Soviet Union. Komitet gosudarstvennoı̆ bezopasnosti
United States. Central Intelligence Agency.
Intelligence service
Perestroĭka
Intelligence service