Lefterov, V., et al. “PSYCHOLOGICAL ASPECTS OF HOLDING OF THE MASS EVENTS ON THE MODERN SPORT BUILDINGS”. Bulletin of Taras Shevchenko National University of Kyiv. Military-Special Sciences, no. 3(40), Jan. 2019, pp. 26-29, https://doi.org/10.17721/1728-2217.2018. 26-29.