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
"Reissig, Michael and Yagdjian, Karen",Klein-Gordon type decay rates for wave equations with time-dependent coefficients,,"Institute of Mathematics, University of Tsukuba",1999,Mathematical research note,,,,https://cir.nii.ac.jp/crid/1130000794405904128