@article{2021-01-01, author = {, , , }, title = {}, year = {2021}, doi = {10.18093/0869-0189-2021-31-1-30-36}, publisher = {NP «NEICON»}, abstract = {}, URL = {https://covid19.neicon.ru/publication/6690}, eprint = {https://covid19.neicon.ru/files/2738}, }