@article{zu214517,
           title = {?? ???????? ???????????? ???????????? ????????
??????},
          author = {?. ?. ???????? and ?. ???????},
       publisher = {???-?? ??? ??. ?. ??????},
            year = {2014},
           pages = {138--140},
         journal = {????????? ???????????? ???????????? ???????? ??????},
             url = {http://eprints.zu.edu.ua/14517/}
}