@article{zu21757,
          number = {13},
           title = {?????? ??? ???????? ?? ???? ?? ?????????? ??????????? ????????????????},
          author = {?. ?. ??????},
       publisher = {???-?? ??? ??. ?.??????},
            year = {2003},
           pages = {155--157},
         journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????},
             url = {http://eprints.zu.edu.ua/1757/},
        abstract = {????????????? ??????? ??????? ?????? ??? ????????, ??? ???????????? ? ????????? ?????????? ??????????? ????????????????.}
}