Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hidaka Hiroshi,Recent studies of the Oklo natural reactors,Abstracts of Annual Meeting of the Geochemical Society of Japan,,GEOCHEMICAL SOCIETY OF JAPAN,2020,67,0,24,https://cir.nii.ac.jp/crid/1390286981379664768,https://doi.org/10.14862/geochemproc.67.0_24