@article{zu2594, number = {19}, title = {?????????? ??????????? ???????? ??????? ? ??????? ???????? ????????? ????}, author = {?. ?. ?????????}, year = {2004}, pages = {179--183}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/594/}, abstract = {? ?????? ????????? ???????? ???????, ??? ???????? ?????????? ??????????? ??????? ???????? ? ???????????????? ???????.} }