Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAKAGAWA Genkichi,"The Extraction of Mn(II), Fe(III), Co(II), Ni, Cu and Zn with Tri-n-Octylamine, and the Separation of Fe, Zn, Co and Ni",Nippon kagaku zassi,0369-5387,The Chemical Society of Japan,1961,82,8,1042-1045,https://cir.nii.ac.jp/crid/1390282680133441024,https://doi.org/10.1246/nikkashi1948.82.8_1042