@article{zu213007, volume = {63}, number = {4}, month = {???????}, author = {?. ?. ???????}, title = {?????????????? ?????????? ??? ?? ?????????? ????????????? ??????? ???????? ?? ??????? ???????.}, publisher = {??????????? ???????? ????}, year = {2011}, journal = {??????????? ???????????? ??????}, pages = {572--577}, url = {http://eprints.zu.edu.ua/13007/}, abstract = {??????????? ??????? ????????, ?? ????? ????????????????? ???????????? ??? ??????????? ??? ???????????? ?????????? ??????.} }