NYUSSUPOVA, Gulnara and KALIMURZINA, Aisulu. The dynamics of sex-age structure of the population in urban and rural areas in the Republic of Kazakhstan in the years 1991-2013. Bulletin of Geography. Socio-economic Series. Online. 29 February 2016. No. 31, pp. 87-111. [Accessed 27 July 2024]. DOI 10.1515/bog-2016-0007.