@article{zu216100,
           title = {????? ??????? ??????????? ???????????? ??????? ????????????? ???????? ?? ?????????? ? ??????? ????????? ????? ????????? ????},
          author = {?. ?. ?????? and ?. ?. ?????????},
       publisher = {???-?? ??? ??. ?.??????},
            year = {2009},
           pages = {140--144},
         journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????},
             url = {http://eprints.zu.edu.ua/16100/}
}