@article{zu231817,
           title = {???????? ??????? ?????????? ???????????? ?? ?????? ????????????? ??????? ? 4-?? ?????},
          author = {?. ?. ??????????},
       publisher = {??-? ??.?. ??????????},
            year = {2020},
           pages = {249--252},
         journal = {???????????? ??????????? ? ?????????? ? ??????????? ??????},
        keywords = {????????, ????????? ???????????, ??????????? ???????},
             url = {http://eprints.zu.edu.ua/31817/},
        abstract = {?????????? ????????? ???????? ? ????? ???????? ????? ??????  ???????? ?????? ?????????? ??????????, ??? ???????????? ? ????????? ??????? ???????. ? ?????? ?????????? ????????? ??? ?????????? ?????? ????????????  ?????? ???? ????????? ??????????? ?? ?????????? ??????? (? ???????????? ?????????). ??????? ????????????? ??? ???????????? ? ??????? ??????? ??????; ?????????????? ?? ???????????????? ???????? ????? ?????????? ??????? ??????????.}
}