@article{zu229472, title = {???? ?? ???????? ??????????? ??????}, author = {?. ?. ?????? and ?. ?. ?????????? and ?. ?. ?????? and ?. ?. ???????}, year = {2019}, pages = {384--385}, journal = {?????????? ???????????-2019}, url = {http://eprints.zu.edu.ua/29472/} }