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
"Agarwal, Ravi P.",Focal boundary value problems for differential and difference equations,,Kluwer Academic,1998,Mathematics and its applications,,0792349784,,https://cir.nii.ac.jp/crid/1130000793926041216