Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 片山 聡一郎,Asymptotic Behavior for Systems of Nonlinear Wave Equations with Multiple Speeds in 3D,数理解析研究所講究録,18802818,[京都] : 京都大学数理解析研究所,2013-07,,1842,69-88,https://cir.nii.ac.jp/crid/1520290885005857664,