1. F. V. Lenel,Powder Metallurgy: Principles and Applications, MPIF, Princeton, NJ (1980).
2. R. M. German, inTungsten and Tungsten Alloys-1992 (eds., A. Bose and R.J. Dowding), p. 1, MPIF, Princeton, NJ (1992).
3. R. M. German,Sintering Theory and Practice, John Wiley & Sons, Inc., New York, NY (1996).
4. L. S. Magness and T.G. Farrand,Proc. 1990 Army Science Conf., p. 149, Durham, NC (1990).
5. S. Cytron, inProc. Inter. Conf. on Adv. Composite Mater. (eds., T. Chandra and A.K. Dhingra), p. 973, TMS, Warren-dale, PA (1993).