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
"Weinberger, Hans F.",Variational methods for eigenvalue approximation,,Society for Industrial and Applied Mathematics,1974,CBMS-NSF regional conference series in applied mathematics,,089871012X,,https://cir.nii.ac.jp/crid/1130282272099444736