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)
,Practical criterion for some submanifolds to be totally geodesic,Monatshefte fur Mathematik 149,,,2006,,,233-242,https://cir.nii.ac.jp/crid/1010282256916531849,