Iwański , Rafał, Paweł Jaskuła, and Zuzanna Rataj. “The Social Security Systems in Belarus, The Republic of Kyrgyzstan and Kazakhstan in Perspective of the Aging Population”. Studia Oeconomica Posnaniensia 7, no. 4 (April 30, 2019): 89–107. Accessed September 3, 2026. https://journals.ue.poznan.pl/soep/article/view/3578.