@unpublished{zu219891,
           month = {?????},
           title = {???????? ????????????? ???????? ????? ??? ???????? ??????? ? ???????? ???????},
          school = {???????????? ???????????? ???????????  ????? ?.?.  ???????????},
          author = {?. ?. ????????},
            year = {1998},
        keywords = {??????????? ????????,  ??????????   ??????????? 
??????????,  ?????? ?? ????? ????????? ????????},
             url = {http://eprints.zu.edu.ua/19891/},
        abstract = {? ??????????  ?????????????  ???????  ????????????  ????????? ??????? ?? ?????????? ??  ???????? ?????????????  ????????  ????? ????????? ????? ??? ???????? ???????  ?  ????????  ???????.  ????????????,  ?? ????????????? ????????  ??????? ???????? ?????????????? ???????????? ?????????? ?????,  ??????  ?? ????????????,  ?????? ?????????? ?? ???????? ???????? ????????????? ????????, ????????  ???????????? ????????.}
}