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
"梶谷, 邦彦 and Wakabayashi, Seiichiro and 西谷, 達雄",The Cauchy problem for hyperbolic operators of effective type,,"Institute of Mathematics, University of Tsukuba",1991,Mathematical research note,,,,https://cir.nii.ac.jp/crid/1130293004051685528