@book{zu230937,
           title = {??????????? ????????? ??????},
          author = {?????? ??????????? and ???? ??????},
       publisher = {??????? ???????? ?????. ???. 8. ???????: ???.?.?. ??????, 2019. 164 ?.},
            year = {2019},
             url = {http://eprints.zu.edu.ua/30937/}
}