@article{zu25206, number = {55}, title = {????????? ?????????? ? ??????? ???????? ???????????}, author = {?. ?. ??????????}, year = {2011}, pages = {144--147}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/5206/}, abstract = {? ?????? ????????????? ???????? ?????? ??????? ?????????? ? ??????? ?????? ?????? ? ?????????? ????????????? ????????? ???????????. ??????? ?????????? ???????????? ? ??????? ??????? ?????????? ?? ???????? ??????????? ???????? ????? ???????????? ?????????? ??? ????????? ?????? ??????? ????? ???????? ????? ???????? ?? ????????? ??????????????? ???????? ????????????? ?????? ???????.} }