@article{zu225015, title = {???????????-???????????? ?????}, author = {?. ?. ?????? and ?. ?. ??????}, publisher = {???????: ?? ??????}, year = {2017}, pages = {285--287}, journal = {?????????? ??????????? ? 2017: ??????? ???????? ?????.}, url = {http://eprints.zu.edu.ua/25015/} }