1. A R E Singer, “Semifinished PM Materials,” plenary lecture, PM '86, Düsseldorf.
2. Productivity and Powder Metallurgy Conference;Williams,1982
3. Nitrogen Ceramics: Liquid Phase Sintering;Lewis;Powder Metallurgy,1983
4. AA R Ercikson and R E Wiech, Jr, “Injection Molding,” Metals Handbook Ninth Edition, Vol 7, p495. Published by ASM, Metals Park, Ohio.