@article{zu216519, title = {?? ???????-???????????? ?????????????? ????? ???????? ???????????? ??????? }, author = {?. ?. ??????? and ?. ?. ????????}, publisher = {???????: ?? "????", ??? ????? ????? ??????}, year = {2015}, pages = {107--109}, journal = {??????? ???????? ????? "?????????? ??????????? - 2015"}, url = {http://eprints.zu.edu.ua/16519/} }