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
"Weidmann, Joachim",Spectral theory of ordinary differential operators,,Springer-Verlag,1987,Lecture notes in mathematics,,"354017902X,038717902X",,https://cir.nii.ac.jp/crid/1130000798391106048