@article{zu21274, number = {14}, title = {???????? ???????? ????? ?? ????? ????????? ? ????????? ?????? ????? (???????????? ??????)}, author = {?. ?. ??????}, year = {2004}, pages = {157--159}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/1274/}, abstract = {? ?????? ?????????? ??????????? ? ??????????? ??????? ????????? ???????? ????? ? ?????????? ?????? (?? ????????? ?????????? ?????? ?????).} }