Title: Taĭnata voĭna, ili Letopis za d-r Aleksandŭr Peev i general Nikifor Nikiforov
Subjects: World War, 1939-1945, Secret service, Spies, History
Places: Bulgaria
People: Aleksandŭr Kostadinov Peev, Nikifor Nikiforov general
Time periods: 1941-1944