Tomasz Sommer wrote a book entitled '' Rozstrzelać Polaków . Ludobójstwo Polaków w Związku Sowieckim w latach 1937-1938 . Dokumenty z Centrali '' ( Execute the Poles : The Genocide of Poles in the Soviet Union ( 1937 – 1938 ) . Documents from Headquarters " ) , devoted the Polish Operation of the NKVD
Polish Operation of the NKVD
Polish Operation of the NKVD
Tomasz Sommer