@article{zu23076, number = {3-4}, title = {???????? ????????? ??? ? ????????? ???????????? ????? ? ????????? ???????? ??????????? ?? ?????? }, author = {?. ?. ????????? and ?. ?. ??????????}, year = {2007}, pages = {130--135}, journal = {?????????? ???????????}, url = {http://eprints.zu.edu.ua/3076/}, abstract = {? ?????? ?????????????? ???? ???????? ????????? ??? ? ????????? ???????????? ????? ? ????????? ???????? ??????????? ?? ??????.} }