Title: Sekretnai͡a istorii͡a Kaliningradskoĭ oblasti
Subjects: History, Population, Politics and government, Political science
Places: Kaliningrad (Kaliningradskai͡a oblastʹ, Russia), Soviet Union, Russia (Federation), Kaliningrad (Kaliningradskai͡a oblastʹ)
Time periods: 20th century, 1945-1991