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 and Schiffer, M. M.","Dirichlet's principle, conformal mapping, and minimal surfaces",,Interscience Publishers,1950,Pure and applied mathematics,,,,https://cir.nii.ac.jp/crid/1130282270884520704