@article{zu2429, number = {20}, title = {??? ????????????? ?????? ????????? ????????????? ??????? ? ???????? ?????}, author = {?. ?. ??????????? and ?. ?. ????????}, year = {2005}, pages = {114--117}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/429/}, abstract = {? ??????? ? ????????? ??????? ????????? ????????????? ??????? ? ???????? ????? ? ?????? ?????????? ???????? ???????? ??????? ???????????? ????? ? ???????? ???????? ???????? ???????????? ???? ???????.} }