Pasichnyk, A. N., I. P. Medvediev, and A. V. Pasichnyk. “Comparative Analysis of Methods Estimating the Population of Ukraine”. Systems and Technologies 1, no. 59 (September 14, 2020): 133-147. Accessed November 21, 2024. https://st.umsf.in.ua/index.php/journal/article/view/56.