@article{zu219695, number = {3}, title = {???? ???????? ? ?????????? ????????? ? ???? ??????? ???? ?????? ???????}, author = {?. ??????? and ?. ?. ??????????}, publisher = {??????? "???????"}, year = {2015}, pages = {66--69}, journal = {???????}, url = {http://eprints.zu.edu.ua/19695/} }