@techreport{zu230893,
            type = {????????? ????},
           title = {??????? ???????????? ?? ??????????? ?????????},
          author = {?. ?. ?????????? and ?. ?. ???????},
       publisher = {???. ?. ?. ??????},
            year = {2020},
             url = {http://eprints.zu.edu.ua/30893/}
}