@book{zu230194,
           title = {?????????? ??????? ? ?????? ?????????: ???????},
          author = {?. ?. ????? and ?. ?. ?????????? and ?. ?. ???'?????},
       publisher = {???-?? ??? ??. ?. ??????},
            year = {2019},
             url = {http://eprints.zu.edu.ua/30194/}
}