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
"Geel, R.",On initial-boundary value problems of hyperbolic type in singular perturbation theory,,University of Amsterdam. Department of Mathematics.,1975,Report,,,,https://cir.nii.ac.jp/crid/1130000795018369792