@article{zu225770,
          number = {5},
           month = {????????},
          author = {?. ?. ????????},
           title = {????????? ?????????? ?????????? ?????????? ?? ???????? ??????????? ?????? ????????? ? ????? ?????????????},
       publisher = {???-?? ?.?.??????, ???????},
         journal = {????????? ??????? ???????? ???????????},
           pages = {233--236},
            year = {2017},
             url = {http://eprints.zu.edu.ua/25770/}
}