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) Daniel J. Casagrande and Kristine Siefert and Charles Berschinski and Nell Sutton,Sulfur in peat-forming systems of the Okefenokee Swamp and Florida Everglades: origins of sulfur in coal,Geochimica et Cosmochimica Acta,0016-7037,Elsevier BV,1977-01,41,1,161-167,https://cir.nii.ac.jp/crid/1363670319843158272,https://doi.org/10.1016/0016-7037(77)90196-x