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
"Troutman, John L. and Hrusa, W. (William)",Variational calculus with elementary convexity,,Springer-Verlag,1983,Undergraduate texts in mathematics,,"9781468401608,0387907718,3540907718",,https://cir.nii.ac.jp/crid/1130282271186810240