@article{zu229686,
           month = {????????},
           title = {???????????? ??????????? ???????????? ????????? ?? ????????? ?? ??????? ??????????},
          author = {?. ?. ??????? and ?. ?. ????????},
       publisher = {??? ??. ?. ??????},
            year = {2019},
           pages = {257--260},
         journal = {????????? ???????? ????????????? ????????? (??????? ???????? ?????)},
             url = {http://eprints.zu.edu.ua/29686/}
}