著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Troelstra, A. S. (Anne Sjerp)",Constructivizing results obtained for intuitionistic formal systems by means of classical semantics,,University of Amsterdam. Mathematisch Instituut,1977,Report,,,,https://cir.nii.ac.jp/crid/1130000797894256640