@article{zu215890,
          number = {2},
           title = {? ????????? ????????????? ?????? ???????????? ???????},
          author = {?. ?. ???? and ????? ??????},
       publisher = {???????: ???-?? ??? ????? ????? ??????},
            year = {2011},
           pages = {243--249},
         journal = {??????????? ???????????? ??????},
        keywords = {??????????, ??????, ???????, ???????, ?????????? ????, ????????????},
             url = {http://eprints.zu.edu.ua/15890/},
        abstract = {? ?????? ????????? ?????? ?????????????? ??????? ????????? ????????????? ?????? ???????????? ???????.}
}