Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OKUYAMA Kazuo and NISHIKAWA Fumisige,Oxygen and Hydrogen Gas Permeability of Perfluorocarbonsulfonic Acid Membranes,NIPPON KAGAKU KAISHI,0369-4577,The Chemical Society of Japan,1994-12-10,1994,12,1091-1096,https://cir.nii.ac.jp/crid/1390282679365825152,https://doi.org/10.1246/nikkashi.1994.1091