@article{zu227355, title = {??????????? ???????????? ????-???? ??? ??? ???????? ????????? ???????? ? ?????? ?? ??????????? ????????? ????????}, author = {?. ?. ????? and ?. ?. ?????}, publisher = {???????: ?? ??????}, year = {2018}, pages = {431--433}, journal = {?????????? ??????????? ? 2018}, url = {http://eprints.zu.edu.ua/27355/} }