@article{zu25661,
           title = {??????????? ????????? ?? ?????? ????????????? ??????????? (?????????????? ??????)},
          author = {?. ?. ????????},
            year = {2011},
           pages = {412--413},
         journal = {C?????? ???????? ?????????? ????????????? ???????????},
             url = {http://eprints.zu.edu.ua/5661/}
}