@article{zu215784,
           title = {???????-???????? ????????????? ???????? ??????? ??????? ??????? ? ???????? ????????},
          author = {?. ?. ??????},
            year = {1977},
         journal = {???????? ?????? ??????? ????????? ?????????? ?????? ??????????????},
             url = {http://eprints.zu.edu.ua/15784/}
}