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) Kouichi Miura and Hiroyuki Nakagawa and Ryuichi Ashida and Takayuki Ihara,Production of clean fuels by solvent skimming of coal at around 350 °C,Fuel,0016-2361,Elsevier BV,2004-04,83,6,733-738,https://cir.nii.ac.jp/crid/1362262944061953408,https://doi.org/10.1016/j.fuel.2003.09.019