@article{zu227113, title = {????? ??????? ???????????? ???????????????? ???????? ?? ???????????? ? ????? ? ????????? ?????????}, author = {?. ?. ??????? and ?. ?. ????????}, publisher = {???????: ?? ??????}, year = {2017}, pages = {320--322}, journal = {?????????? ??????????? ? 2017}, url = {http://eprints.zu.edu.ua/27113/} }