%0 Journal Article %T COVID-19 Pandemic Course 2020–2022: Description by Methods of Mathematical Statistics and Discrete Mathematical Analysis %A Gvishiani, A.D. %A Odintsova, A.A. %A Rovenskaya, E.A. %A Boyarshinov, G.. %A Belov, I.O. %A Dobrovolsky, M.N. %K COVID-19, DMA, statistics, data analysis %J Russian Journal of Earth Sciences %D 2023 %N 23 %P 19 %I Geophysical Center of the Russian Academy of Sciences