@unpublished{zu27527,
           title = {???????? ???????? ????? ?????????????},
          author = {?. ?. ??????? and ?. ?. ????????},
            year = {2012},
             url = {http://eprints.zu.edu.ua/7527/},
        abstract = {????????? ??? ???????????? ?????? ? ???????? ???????? ??????}
}