@article{zu224880, title = {??????????? ?????? ??????????? ??????????????? ?????? ?????????? ?????????? ? ???}, author = {?. ?. ?????}, publisher = {???????: ?? ??????}, year = {2017}, pages = {253--256}, journal = {?????????? ??????????? ? 2017: ??????? ???????? ?????.}, url = {http://eprints.zu.edu.ua/24880/} }