@article{zu215735,
          number = {45},
           title = {????????????? ???????????? ?????? ? ???????????? ?????????? ??????},
          author = {?. ?. ??????},
       publisher = {???-?? ??? ??. ?.??????},
            year = {2009},
           pages = {231--233},
         journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????},
             url = {http://eprints.zu.edu.ua/15735/}
}