@article{2020-04-30, author = {, }, title = {}, year = {2020}, doi = {10.3897/popecon.4.e53492}, publisher = {NP «NEICON»}, abstract = {}, URL = {https://covid19.neicon.ru/index.php/publication/7975}, eprint = {https://covid19.neicon.ru/index.php/files/3255}, }