@article{zu231421,
          number = {1},
           title = {???? ? ????? ???????? ???????? ? ?????????????? ????????????},
          author = {?. ?. ?????? and ?. ?. ???????????},
            year = {2019},
           pages = {20--23},
         journal = {?????????? ? ?????? ?????},
             url = {http://eprints.zu.edu.ua/31421/}
}