@article{zu22234, number = {21}, title = {???????-????????????? ?????????? ?????? ????}, author = {?. ?. ????????}, year = {2005}, pages = {136--138}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/2234/}, abstract = {? ?????? ????????????? ???? ?? ???????? ????????????? ????????? ??????????????? ????? ????????? ? ???????? ??????????? ?????? ???? ? ???????-??????????????.} }