@article{zu21526, number = {15}, title = {??????? ??????????? ??????? ???????? ???????????? ??????????}, author = {?. ?. ??????????}, year = {2004}, pages = {132--134}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/1526/}, abstract = {????? ?????? ???????? ???????? ???????? ???????????? ?????????? ?? ??????? ?????????, ???????? ??????? ???? ??????????? ?????? ? ?????? ?? ???????????.} }