@article{zu25649,
           title = {?????????????? ????????? ???????????? ????????? ????????},
          author = {?. ?. ??????},
            year = {2011},
           pages = {138--140},
         journal = {C?????? ???????? ?????????? ????????????? ???????????},
             url = {http://eprints.zu.edu.ua/5649/}
}