@unpublished{zu221737,
           month = {???????},
           title = {????????????? ????????????? ?? ???????????? ????????? ? ????????? ???????? ????????},
          school = {??? ????? ????? ??????},
          author = {?. ?. ?????},
            year = {2016},
             url = {http://eprints.zu.edu.ua/21737/},
        abstract = {??????????? ??????????}
}