Малиновська, Олена. “METHODS OF ESTIMATING THE NUMBER OF IREGULAR MIGRANTS AND THE POSSIBILITY OF APPLYING THEM IN UKRAINE”. Demography and social economy 39, no. 1 (July 29, 2021): 33–46. Accessed April 27, 2024. https://ojs.dse.org.ua/index.php/dse/article/view/40.