@article{zu215121,
           title = {???????????? ??????? ?????????????? ???????????????? ? ??????????? ??????},
          author = {?. ?. ???????},
       publisher = {???????? : ????},
            year = {2007},
           pages = {140--142},
         journal = {????????? ????????????? ??????: ?????????????? ??????},
             url = {http://eprints.zu.edu.ua/15121/}
}