R. Zakarya systemadm. PREREQUISITES FOR MIGRATION OF EUROPEAN MIGRANTS TO THE USSR, AS WELL AS THEIR MAIN CATEGORIES. Asian Journal «Steppe Panorama» [Интернет]. 25 июнь 2025 г. [цитируется по 18 июль 2025 г.];9(3):81-97. доступно на: https://www.ajspiie.com/index.php/history/article/view/36