@article{zu218758,
           title = {????????? ?????? ?? ?????? ???????????? ??????????? ??'?????},
          author = {?. ?. ??????????},
       publisher = {???????, ?????? ?.?.},
            year = {2015},
           pages = {197--199},
         journal = {????????????? ?? ???????????????? ???????? ??????????},
             url = {http://eprints.zu.edu.ua/18758/}
}