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) ,Phosphorodiamidic Acid as a Novel Structural Motif of Bronsed Acid Catalysts for Direct Mannich Reaction,Synlett,,,2006,,,133-136,https://cir.nii.ac.jp/crid/1010282256614043530,