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
"Courant, Richard","Dirichlet's principle, conformal mapping, and minimal surfaces",,Dover Publications,2005,Dover books on mathematics,,0486445526,,https://cir.nii.ac.jp/crid/1130000797262378496