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) ,Biharmonic submanifolds in a Riemannian manifold with non-positive curvature,Results in Math.,,,2012,(未定)(掲載決定),,,https://cir.nii.ac.jp/crid/1010282257056695440,