Kiryanov I, Nazukina M. The history of the bulgarians of prikamye in 1920-1930-s based on the archival investigation files materials. ВПФИЦ [Internet]. 2020 Jul. 22 [cited 2026 May 14];(2):76-88. Available from: https://journal.permsc.ru/index.php/pscj/article/view/PSCJ2020n2p8