@article{zu213009,
          volume = {63},
          number = {7},
           month = {????????},
          author = {?. ?. ?????? and ?. ?. ???????????},
           title = {?????????? (n, d)-??????? ??????? ????? ? ??????????? ??? ???????????? ???????? ? ???????? ????????},
       publisher = {??????????? ???????? ????},
            year = {2011},
         journal = {??????????? ???????????? ??????},
           pages = {867--879},
             url = {http://eprints.zu.edu.ua/13009/},
        abstract = {????? ?????? ?????? ???????? ????????? ?????? ?????? ???????????? ?????????? ???????? ??????? ??????? ???????????? ????????.}
}