@article{zu21634, number = {33}, title = {???????? ???????? ?????????? ???????? ??????? ??????????? ?? ??????????? ???????}, author = {?. ?. ?????????}, year = {2007}, pages = {105--108}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/1634/}, abstract = {? ?????? ?????? ???????? ???????? ?????????????? ?????????? ??????? ????? ??????? ??????????? ?? ??????????? ??? ?? ??????? ?????????? ?????????????? ?????. ????? ??????????? ?? ??????????? ?????????????? ??????????? ?????????? ???????????, ??? ????????????? ? ????? ???????? ?? ??????? ???????????? ??????????? ???????? ?? ????????????? ? ???? ?????.} }