@article{zu24970,
          number = {18},
           title = {??????? ????????? ?????? ? ???????? ????????? ????????????? ??????? (???????? ??? - ?? ??.)},
          author = {????? ?????},
            year = {2009},
         journal = {??????-???????????},
             url = {http://eprints.zu.edu.ua/4970/}
}