1. Bailey, J.B.N., C.H. Teh, and E. Palumbo. “New Sampling Method for Precious Metals Scrap: Noranda Sampler.” Paper presented at the 1989 IPMI Conference, Montreal, Canada.
2. Edson, Gwynne. “Recovery of Precious Metals from Electronic Scrap.” International Conference on Precious Metals 1981. Allentown, PA: International Precious Metals Institute, 1981.
3. Garino, R.J. “Making the Most of Electronic Scrap.” Scrap Process Recycling. (January/February 1989): pp. 65–71.
4. Hilliard, H.E., and B.W. Dunning, Jr. “The Platinum Group Metals—An In-Depth View of the Industry.” Recovery of Platinum-Group Metals and Gold From Electronic Scrap, ed. D.E. Lundy and E.D. Zysk. Allentown, PA: International Precious Metals Institute, 1983.
5. Imperato, E.G., and M.A. Pashelinsky. “Pyrometallurgical Processing of Precious Metals Scrap in an Electric Arc Furnace.” Precious Metals 1988. Allentown, PA: International Precious Metals Institute, 1988.