@article{zu216518, title = {??????????? ? ?????????? ???????? ??????????? ????????? ????? ?????????? ? ???????? ?????}, author = {?. ?. ???????? and ?. ?. ???????}, publisher = {???????: ?? "????", ??? ????? ????? ??????}, year = {2015}, pages = {490--493}, journal = {??????? ???????? ????? "?????????? ??????????? - 2015"}, url = {http://eprints.zu.edu.ua/16518/} }