@article{zu2668,
          number = {13},
           title = {????????? ????????? ???????? ???????? ???????? ?????????},
          author = {?. ?. ????????},
       publisher = {???-?? ??? ??. ?.??????},
            year = {2003},
           pages = {109--111},
         journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????},
             url = {http://eprints.zu.edu.ua/668/},
        abstract = {???????? ?????? ???????????? ??????? ???????? ??????????? ????????? ???????? ???????? ? ?????????? ???????? ?????? ?????????? ?????.}
}