@article{zu233425, title = {????????? ??????? ???????????? ??????? ??????? ?????????????? ?????? ? ??????? ?????????? ?????????????? ? ?????? ? ????? ???????? ?????}, author = {?. ?. ??????????? and ?. ?. ??????? and ?. ?. ????? and ?. ?. ?????????}, year = {2021}, journal = {The 4th International scientific and practical conference ?European scientific discussions? (February 26-28, 2021)}, url = {http://eprints.zu.edu.ua/33425/} }