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 Yagdjian, Karen",The C[∞] - well posed Cauchy problem for hyperbolic operators with multiple characteristics vanishing with the different speeds,,"Institute of Mathematics, University of Tsukuba",2000,Mathematical research note,,,,https://cir.nii.ac.jp/crid/1130282272602875520