@inproceedings{zu213215,
       booktitle = {?????????? ??????? ?????????? "??? ????? ????????????? ?????????? 2011"},
           title = {????????-??????????? ????????????? ???????? ????????? ???????? ??????????? ??????},
          author = {?. ?. ????},
            year = {2011},
           pages = {218--219},
             url = {http://eprints.zu.edu.ua/13215/}
}