@unpublished{zu218453,
           title = {?????????????-??????-????????????? ??????????? ???????? ? ???? ????? ???????????????? ?????????? ({\ensuremath{\alpha}}-??????????????) ????????? ? ???????},
          school = {???},
          author = {?. ?. ????????},
            year = {1987},
             url = {http://eprints.zu.edu.ua/18453/},
        abstract = {???. ?????. ???. ????: 02.00.02}
}