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) J. D. Edixhoven and J. Gupta and H. H. G. Savenije,Recent revisions of phosphate rock reserves and resources: a critique,Earth System Dynamics,2190-4987,Copernicus GmbH,2014-12-19,5,2,491-507,https://cir.nii.ac.jp/crid/1363388845249461376,https://doi.org/10.5194/esd-5-491-2014