G. . Kozachenko, Y. . Pogorelov, O. Olshanskyi, M. . Kramchaninova, and V. . Vakhlakova, “COVID-19 Pandemic as a Threat to Ukraine’s Socio-Economic System: Materialization Features, Indicators and Consequences ”, EJSD, vol. 10, no. 3, p. 303, Oct. 2021.