@article{zu229185, title = {??????? ??????????? ???????? ????????? ???????????}, author = {?. ?. ????????}, publisher = {???-?? ?? "?????????? ???????????? ??????????? ????? ?????? ????????"}, year = {2017}, pages = {142--146}, journal = {????????? ????????-???????????}, url = {http://eprints.zu.edu.ua/29185/} }