著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) ,Strong instability of standing waves for nonlinear Klein-Gordon equations,New Trends in the Theory of Hyperbolic Equations Operator Theory: Advances and Applications 159,,,2005,,,113-211,https://cir.nii.ac.jp/crid/1010000781940050824,