@unpublished{zu27238,
           title = {??????????? ? ???????? ?????????? ????????? ? ?????? ? ???????? ?????},
          author = {?. ?. ??????? and ?. ?. ????????},
            year = {2012},
             url = {http://eprints.zu.edu.ua/7238/},
        abstract = {????????? ??? ???????????? ????? ? ???????? ??????}
}