@article{zu26946,
           title = {?????? ??????????? ????},
          author = {?. ?. ??????},
            year = {1999},
           pages = {52--54},
         journal = {?????? ????. ?????????????? ?? ??????????? ?????, ???????? ??????},
             url = {http://eprints.zu.edu.ua/6946/},
        abstract = {????????????? ???? ??????? ??????? ??????? ???????????? ???????? - ??????? ???? ????????, ???????, ??????, ?????????? ???? ? ??? ?????? ?????? ? ????????????? ?????? ????????? ???? - ???????? ????? ????????????.}
}