V. Ryazantsev, Sergey, Galina N. Ochirova, and Anastasia S. Maksimova. “Relationship Between Trends of Highly Qualified Immigration to Russia and Demand of the Russian Labor Market”. Journal of Population and Social Studies [JPSS] 27, no. 4 (July 25, 2019): 307 - 320. Accessed October 23, 2020. https://so03.tci-thaijo.org/index.php/jpss/article/view/171465.