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)
SIGMAN DM,A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater,Anal Chem,,,2001,73,,4145-4153,https://cir.nii.ac.jp/crid/1570572699325275648,