@article{zu225810,
          number = {5},
           month = {????????},
          author = {?. ?. ????? and ?. ?. ?????????},
           title = {???????? ??????????? ?????? ??????????? ??????????? ? ????????? ??? ????? 6 ??????},
       publisher = {???-?? ?.?.??????, ???????},
         journal = {????????? ??????? ???????? ???????????},
           pages = {331--333},
            year = {2017},
             url = {http://eprints.zu.edu.ua/25810/}
}