1. Lead-Zinc 2010;Hayes,2010
2. Lead-Zinc 2010;Pyatt,2010
3. Extractive Metallurgy of Lead;Sinclair,2009
4. Lead-Zinc-Tin’80: TMS-AIME World Symposium on Metallurgy and Environmental Control;Willis,1980
5. Handbook of Extractive Metallurgy;Melin,1997