Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 石川 平七,琥珀炭の低温乾溜及び乾溜油の處理に就て,Journal of the Fuel Society of Japan,0369-3775,THE JAPAN INSTITUTE OF ENERGY,1944,23,4,163-177,https://cir.nii.ac.jp/crid/1390282679273247232,https://doi.org/10.3775/jie.23.163