@article{zu226939,
           month = {????????},
           title = {????? ????? ???? ??????? ??? ???????????? ???????},
          author = {?. ?. ????????? and ?. ?. ?????},
            year = {2018},
           pages = {139--141},
         journal = {?????????? ??????????? - 2018},
             url = {http://eprints.zu.edu.ua/26939/}
}