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 "加藤, 敏夫",Perturbation theory for linear operators,Corrected printing of the 2nd ed,Springer-Verlag,1980,Die Grundlehren der mathematischen Wissenschaften,,"0387075585,3540075585",,https://cir.nii.ac.jp/crid/1130282270018741504