@article{zu24159,
          number = {2},
           title = {???????? ???????? ????????? ????? 6 ? 7  ?????},
          author = {?. ?. ??????????},
            year = {2009},
           pages = {1--31},
         journal = {???????? ????????},
             url = {http://eprints.zu.edu.ua/4159/}
}