@article{zu230815, title = {??????????? ???????????? ????????????-?????????????? ?????????? ?? ?????? ??????????? ???? ? ?????????? ?????}, author = {?. ?. ???????? and ?. ?. ????????}, year = {2020}, journal = {?????? ? ???????? ???????? ????????? ???}, url = {http://eprints.zu.edu.ua/30815/} }