@article{zu214224,
           title = {???????? ???????????? ??????-??????},
          author = {?. ?. ??????? and ?. ?. ?????????},
            year = {2013},
           pages = {226--230},
         journal = {?????????? ???????????. ? 2013: ????????? IV ????.-???????. ??????. ????},
             url = {http://eprints.zu.edu.ua/14224/}
}