@article{zu225066, title = {?????????? ?????? ???????? ??????????????? ?????????????}, author = {?. ?. ??????? and ?. ?. ????????}, publisher = {?? ??????}, year = {2017}, pages = {428--431}, journal = {?????????? ??????????? ? 2017: ??????? ???????? ?????}, url = {http://eprints.zu.edu.ua/25066/} }