@article{zu228909, title = {?????????? ????? ????? ????????? ????? ?????????? ????? ?? ??????? ????????????? ???????}, author = {?. ?. ???????????? and ?. ?. ???????}, year = {2018}, journal = {?????????? ???????? ? ????????? ??????????? ????? ??????????? ?????}, url = {http://eprints.zu.edu.ua/28909/} }