@article{zu227033,
          number = {9},
           month = {????????},
           title = {???????????? ??????? ?????????? ? ??????????? ?????????? ??????? ???????????},
          author = {?. ?. ????},
            year = {2018},
           pages = {250--252},
         journal = {??????? ???????????? ?????????? ? ?????? ? ?????},
             url = {http://eprints.zu.edu.ua/27033/}
}