@article{zu213715,
           title = {??????????? ?????????? ????????? ??????? ????? ? ???????????? ??????},
          author = {?. ?. ????????},
       publisher = {???-?? ??? ????? ????? ??????},
            year = {2011},
           pages = {199--202},
         journal = {?????? ? ???????? ?????????? ????????? ???????? ?? ???????????? ??? : ??. ?????????? ???????????},
             url = {http://eprints.zu.edu.ua/13715/}
}