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
"Morse, Marston",Variational analysis : critical extremals and Sturmian extensions,,Dover,2007,Dover books on mathematics,,9780486457871,,https://cir.nii.ac.jp/crid/1130000795119019136