Michalski, Tomasz, and Wioletta Szymańska. “Regularities in the Gender Gap in Life Expectancy at Birth in European Post-Communist Countries”. Studia Demograficzne, no. 2(178) (December 30, 2020): 35–52. Accessed May 3, 2024. https://econjournals.sgh.waw.pl/SD/article/view/2526.