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) Lyobomir I. Dimitrov,Mud volcanoes?a significant source of atmospheric methane,Geo-Marine Letters,0276-0460,Springer Science and Business Media LLC,2003-12-01,23,3-4,155-161,https://cir.nii.ac.jp/crid/1363670318837135232,https://doi.org/10.1007/s00367-003-0140-3