@article{zu222885,
           title = {??????????? ??????????? ? ???????? ?????????? ??????? ?? ?????????? ???????? ? ????????? ??????????? ??????????? ????? ? ???????? ?????},
          author = {?. ?. ??????},
       publisher = {????-???},
            year = {1991},
           pages = {67--69},
         journal = {?????????? ????????, ????????, ????. ?????? ????????},
             url = {http://eprints.zu.edu.ua/22885/}
}