Title: KGB v russkom zarubezhʹe
Subjects: Intelligence officers, Biography, Officials and employees, Russians, Emigration and immigration, Soviet Union. Komitet gosudarstvennoĭ bezopasnosti, Soviet Union, Russians, foreign countries, Soviet union, emigration and immigration, Intelligence officers, biography, Soviet union, biography, Soviet Espionage, Subversive activities
Places: Soviet Union, Foreign countries
People: Konstantin Preobrazhenskiĭ