@article{zu227372,
          number = {22},
           title = {????? ??????? ?????????? ?? ?????????????? ????? ?????????},
          author = {?. ?. ?????-??????? and ?. ?. ??????????},
            year = {2018},
           pages = {539--543},
         journal = {????????? ?? ??????????? ???????? ?????????},
             url = {http://eprints.zu.edu.ua/27372/}
}