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) Motoki Sasakawa and Urumu Tsunogai and Sohiko Kameyama and Fumiko Nakagawa and Yukihiro Nojiri and Atsushi Tsuda,Carbon isotopic characterization for the origin of excess methane in subsurface seawater,Journal of Geophysical Research: Oceans,0148-0227,American Geophysical Union (AGU),2008-03,113,C3,C03012,https://cir.nii.ac.jp/crid/1361981469733324672,https://doi.org/10.1029/2007jc004217