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) KJELDAHL C.,A new method for the determination of nitrogen in organic matter.,Z Anal Chem,,,1883,22,,366,https://cir.nii.ac.jp/crid/1572543024017599360,