Vaiman D. Bulgarians of the Perm Region during «the Great Terror»: «Dobrynkaya folder». ВПФИЦ [Internet]. 2021 Jul. 1 [cited 2026 Nov. 5];(4):82-95. Available from: https://journal-dev.icmm.ru/index.php/pscj/article/view/PSCJ2021n4p8