@article{zu236587, number = {1}, title = {?????? ?????????? ????? ??? ????????????????????? ?????????? ?? ?? ???????? ???????? 1990-2020 ?????}, author = {?. ?. ??????? and ?. ?. ??????? and ?. ?. ?????????}, publisher = {???????????? ????????? ??????????? ????? ????? ??????}, year = {2022}, pages = {174--180}, journal = {??????????? ?????? ??????????? ????}, url = {http://eprints.zu.edu.ua/36587/} }