@article{zu212441,
           title = {???????? ?????? ?? ?????? ????????? ???????? ????????},
          author = {?. ????????? and ?. ?. ????????},
       publisher = {???-?? ??? ??. ?. ??????},
            year = {2013},
           pages = {280--283},
         journal = {???????????? ? ?????? ????????????????? ???????? ????? ?????},
             url = {http://eprints.zu.edu.ua/12441/}
}