@article{zu215264,
           title = {? ??????? ? ??????? ??????????????? ? ???????????},
          author = {?. ?. ??????? and ?. ?. ????},
            year = {2008},
           pages = {145--147},
         journal = {???? ? ??????? ? ??????? ? ????????: ?????? ????. ????????. ????.????},
             url = {http://eprints.zu.edu.ua/15264/}
}