RT - journal article
SR - Electronic
T1 - 
SP - 2021-02-01
DO - 10.18565/aig.2021.2.48-54
A1 - , 
A1 - , 
A1 - , 
A1 - , 
YR - 2021
UL - https://covid19.neicon.ru/publication/6167
AB -