1. Robert M. Conaway: Metal Powder Report, February, 1988. Also: Various Conaway Technologies Publications.
2. B. Ferguson, H.A. Kuhn, O.D. Smith, F. Hofstatter, The International Journal of Powder Metallurgy, Vol. 20, p. 2.
3. Eric Drake, Reed Tool Company, Private Communications, 1993.
4. H.C. Fiedler, T.F. Sawyer, R.W. Koop, G.E. Material Laboratory, Internal Reports 1985-1987.