@article{zu213777,
           title = {??????????? ???????????? ????????? ???},
          author = {?. ?. ????????? and ?. ?. ????????},
       publisher = {???-?? ??? ??. ?. ??????},
            year = {2014},
           pages = {61--64},
         journal = {???????????? ????? ?????? ? ??????? ?? ?? ????????},
             url = {http://eprints.zu.edu.ua/13777/}
}