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
"Takamura, Hiroyuki",An elementary proof of the exponential blow-up for semilinear wave equations,,"Institute of Mathematics, University of Tsukuba",1992,Mathematical research note,,,,https://cir.nii.ac.jp/crid/1130011528813134371