@unpublished{zu27230,
           title = {?????? ?????? ???????? ?????? ? ???????? ?????},
          author = {?. ?. ??????? and ?. ?. ????????},
            year = {2012},
             url = {http://eprints.zu.edu.ua/7230/},
        abstract = {????????? ??? ???????????? ?????? ? ???????? ??????}
}