@article{zu213996,
          volume = {90},
          number = {3},
           title = {? ????????????? ??????????
???? ????????? ? ???????????},
          author = {?. ?. ???????????},
            year = {2011},
           pages = {445--453},
         journal = {?????????????? ???????},
             url = {http://eprints.zu.edu.ua/13996/},
        abstract = {? ?????? ??????????????? ?????? ? ???????????? ????????? }
}