@article{zu212566,
           title = {???? ????????????? ???????? ? ???????????? ???????? ?.?. ??????????},
          author = {?. ??????? and ?. ?. ????????},
       publisher = {???-?? ??? ??. ?. ??????},
            year = {2013},
           pages = {230--232},
         journal = {???????????? ? ?????? ????????????????? ???????? ????? ????? : ??????? ???????? ?????},
             url = {http://eprints.zu.edu.ua/12566/}
}