R. Zakarya RZ. PREREQUISITES FOR MIGRATION OF EUROPEAN MIGRANTS TO THE USSR, AS WELL AS THEIR MAIN CATEGORIES. edu.e-history.kz [Интернет]. 30 сентябрь 2022 г. [цитируется по 19 май 2024 г.];9(3):81-97. доступно на: http://89.250.84.165/index.php/history/article/view/36