@article{zu218777,
           title = {????????? ?????? ????? ?. ?. ???????? "???????"},
          author = {????? ???????},
       publisher = {??? ??. ?. ??????},
            year = {2005},
           pages = {50--55},
         journal = {?????? ?????  ?????? ????????},
             url = {http://eprints.zu.edu.ua/18777/}
}