@unpublished{zu27223,
           title = {????????????? ????? ?????????? ?????? ?? ??????},
          author = {?. ?. ??????? and ?. ?. ????????},
            year = {2012},
             url = {http://eprints.zu.edu.ua/7223/},
        abstract = {????????? ??? ???????????? ?????? ?? ???????? ??????}
}