1. Y.S. Wang “Study on Separation of Copper and Lead in Copper Dross by Vacuum Distillation,” (Master thesis, Kunming University of Science and technology, 2012), 14-15
2. L.L. Ban “Study on the Application of A New Decoppering Technique in Refing of Lead Bullion,” (Master thesis, Kunming University of Science and technology, 2005), 21-22
3. Comprehensive Production of Impurity Control in the Process of Lead Bullion Fire Refning;Zhou;Hunan Nonferrous Metals,2005
4. Experimental Study on Copper Removal Process with Pyrite in the Process of Lead Bullion Fire Refining;Yuan;Hunan Nonferrous Metals,2013
5. Thermodynamic Analysis on a New Decoppering Process in Pyro-refining of Lead Bullion;Ban;Nonferrous Metals (Extractive Metallurgy),2008