Sketches from a Secret War: A Polish Artist's Mission to ...
Timothy Snyder
Konrad Sadkowski, "From Ethnic Borderland to Catholic Fatherland: The Church, Christian Orthodox, and State Administration in the Chełm Region, 1918–1939," Slavic Review, 57:4, 1998, 813–839. Pułkownik Turkowski, Kierownik Akcji ...