@article{zu231654, volume = {389}, number = {1}, author = {?. ?. ?????? and ?. ?. ???????}, title = {????? ??????????? ??????? ?? ????? ?????? ???? ??????? ? ????????? ?????????? ??????????}, publisher = {?????????????????? ???????????? ??????????? ????? ???? ????????}, journal = {???????? ?????? ??????????????????? ????????????? ???????????? ????? ???? ????????. ?????: ?????????? ?????}, pages = {66--71}, year = {2020}, url = {http://eprints.zu.edu.ua/31654/} }