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
"Schechter, Martin",Spectra of partial differential operators,,North-Holland Pub. Co.,1971,North-Holland series in applied mathematics and mechanics,,"0444101098,072042366X",,https://cir.nii.ac.jp/crid/1130000795320742272