@book{zu231404,
           title = {?????????? ?????? ?????????????? ????????? I ????? ??????? ??????? ????? ?????? ? ?????? ??????????? ??????????. ????? ??? ????????? : ?????????? ????????},
          author = {?. ?. ???????? and ?. ?. ?????????? and ?. ?. ?????},
       publisher = {?. ?. ??????},
            year = {2020},
             url = {http://eprints.zu.edu.ua/31404/}
}