@article{zu223318,
          volume = {17},
          number = {3},
           title = {????????????? ????? ? ???????????? ??????????? ?????????? ?. ??????? ? ?? ???????????? (???????)},
          author = {?. ?. ?????? and ?. ?. ??????????},
            year = {2007},
           pages = {336--344},
         journal = {??????????},
             url = {http://eprints.zu.edu.ua/23318/}
}