@article{zu231146,
          number = {2(21)},
           month = {???????},
          author = {?. ?. ??????? and ?. ?. ????????},
           title = {???????? ??????????? ? ?????????? ???????????? ?????????},
       publisher = {????? : ??????},
         journal = {?????? ????????-??????????? ???????-????????? ??????????? ????????? ????? ?. ?. ???????????},
           pages = {68--72},
            year = {2020},
             url = {http://eprints.zu.edu.ua/31146/}
}