@article{zu21216,
          number = {21},
           title = {???????? ?????????? ??????????? ??????????????? ? ???????? ????????},
          author = {?. ?. ????????},
       publisher = {???-?? ??? ??. ?.??????},
            year = {2005},
           pages = {271--273},
         journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????},
             url = {http://eprints.zu.edu.ua/1216/},
        abstract = {????? ?????? ????????? ???? ?? ???????? ?????????? ??????????? ??????????????? ? ???????? ???????? ???????? ?????????? ????????.}
}