@book{zu230935,
           title = {??????????? ????????? ??????},
          author = {?????? ??????????? and ???? ??????},
       publisher = {??????? ???????? ?????. - ???. 6. - ???????: ???-?? "???????", 2017. - 192 ?.},
            year = {2017},
             url = {http://eprints.zu.edu.ua/30935/}
}