Title: Semipalatinskiĭ i͡adernyĭ poligon - 50 let
Subjects: History, Nuclear weapons, Nuclear weapons testing victims, Radioecology, Soi︠u︡z 'Semipalatinsk' Novosibirskoĭ oblasti, Testing
Places: Kazakhstan, Russia (Federation), Semeĭ (Kazakhstan)
Time periods: 20th century