@article{zu2903, number = {9}, title = {???? ??????? ? ???????? ????????? ?????????}, author = {?. ?. ?????}, year = {2002}, pages = {178--182}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/903/}, abstract = {? ?????? ????????????? ??????? ???????? ????????? ????????? ? ????????? ????????? ?. ???????.} }