@article{zu215882,
          number = {2},
           title = {???????? ????? ????????},
          author = {?. ?. ???? and ????? ?????????},
       publisher = {???????: ???-?? ??? ????? ????? ??????},
            year = {2011},
           pages = {181--185},
         journal = {??????????? ???????????? ??????},
        keywords = {????????, ????? ??????, ???????, ???????, ?????????, ???????-?????????? ?????},
             url = {http://eprints.zu.edu.ua/15882/},
        abstract = {? ?????? ?????????????? ????? ?????? ?. ???????? ?????? ????????? 13 ???????-??????????? ???? ?????????.}
}