@article{zu212618, number = {2}, title = {?????????? ??????????? ??????? ?? ???????????? ?????????}, author = {?. ?. ???????? and ?. ?. ??????}, year = {2005}, pages = {121--126}, journal = {?????????? ??????????? ?????????????? ??????????? ??????? ????????? ???? ???????? ???????????? ???????? ??????????}, url = {http://eprints.zu.edu.ua/12618/} }