@inproceedings{zu27215,
       booktitle = {????????? ?????????? ????????-??????????? ???????????},
           title = {????????????? ?????? ???????? ??????????? ????????? ???????????? ???????????},
          author = {?????? ?????},
            year = {2008},
           pages = {89--91},
             url = {http://eprints.zu.edu.ua/7215/}
}