@article{zu221141,
           title = {?????????? ?????? ?????? ? ??????? ??????? ?????????},
          author = {??????? ???????? and ?. ?. ??????},
            year = {2016},
           pages = {30--32},
         journal = {?????????? ????????  ??????????? ?? ?????????? ? ??? ??.?},
             url = {http://eprints.zu.edu.ua/21141/}
}