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
"Zenkov, Dmitry V.",The inverse problem of the calculus of variations : local and global theory,,Atlantis Press,2015,Atlantis studies in variational geometry,,9789462391086,,https://cir.nii.ac.jp/crid/1130000795836323840