. "Bolesław Bierut (born as Bolesław Biernacki) was a Polish Communist leader, NKVD agent and a Stalinist who became President of Poland after the Soviet occupation of the country in the aftermath of World War II -- Wikipedia"@en . "port."@en . . . . "[3] p."@en . "3 newspaper clippings"@en . "990002192950304146"^^ . . . . "Envelope 3/5 ; microfilm reel 051 Frames 674 - 677"@en . . "Bierut Boleslaw, 1892-1956"@en .