Sohn, Hong Yong/Extractive and Process Metallurgy Meeting of the Metallurgical Society of AIME (1983 : San Francisco, Calif.)/TMS-AIME Physical Chemistry Committee/George, David B./Zunkel, A. D./International Sulfide Smelting Symposium (1983 : San Francisco, Calif.)
International Symposium on Metallurgical Processes for the Year 2000 a/Geskin, E. S./Sohn, Hong Yong/TMS-AIME Physical Chemistry Committee/Minerals, Metals and Materials Society Pyrometallurgical Committee