Ivanov, I.Y. and Kosaretsky, S.G. 2021. Inequality of children’s opportunities in extracurricular education in post-Soviet countries. Journal of the Belarusian State University. Sociology. 4 (Dec. 2021), 58–68. DOI:https://doi.org/10.33581/2521-6821-2021-4-58-68.