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) Satoki Okabayashi and Tetsuya Yokoyama and Nao Nakanishi and Hikaru Iwamori,Fractionation of highly siderophile elements in metal grains from unequilibrated ordinary chondrites: Implications for the origin of chondritic metals,Geochimica et Cosmochimica Acta,0016-7037,Elsevier BV,2019-01,244,,197-215,https://cir.nii.ac.jp/crid/1360567182120219008,https://doi.org/10.1016/j.gca.2018.10.003