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) Royston H. Filby,"Origin and nature of trace element species in crude oils, bitumens and kerogens: implications for correlation and other geochemical studies","Geological Society, London, Special Publications",0305-8719,Geological Society of London,1994-01,78,1,203-219,https://cir.nii.ac.jp/crid/1360011144645432960,https://doi.org/10.1144/gsl.sp.1994.078.01.15