"The Polish-Soviet Treaty of December 17, 1956 formalized for the first time a situation which had existed in fact since World War II.". Nish Jamgotch,Soviet-East European Dialogue: International Relations of a New Type?, Hoover Institution on War, Revolution and Peace, Stanford University, Google Print, p.64
Jaromír Navrátil, The Prague Spring 1968: a national security archive documents reader, Central European University Press, 1998, ISBN963-9116-15-7, Google Print, p.533
Paweł Piotrowski of the Institute of National Remembrance, Wrocław, writes that the report of Polish Secret Police notes that "in certain aspects" the resettlement brought about the associations with the Nazis' forced resettlement of Jews into ghettos; and for a time a rumour spread through Poland that the Soviets were massacring Polish population around Legnica; though no evidence of anyone being killed in the course of it has come to light. See cited article.
