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) ZHENG XQ,"Theacrine (1,3,7,9-tetramethyluric acid) synthesis in leaves of a Chinese tea, kucha (Camellia assamica var. kucha)",Phytochemistry,,,2002,60,,129-134,https://cir.nii.ac.jp/crid/1573387451542502016,