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) TAMASSY L.,On weakly symmetric and weakly projective symmetric Riemannian manifolds,"Coll. Math. Soc., J. Bolyai",,,1989,50,,663-670,https://cir.nii.ac.jp/crid/1571980075775193856,