REFERENCES
- P. ENGDAHL: ‘Modern developments in powder metallurgy’, Vol. 20, 655–665; 1988, Orlando, FL, American Powder Metallurgy Institution.
- B. BERGQUIST and B. HILDENWALL: ‘Advances in powder metal-lurgy and particulate materials’, Vol. 3, 317–328; 1996, Princeton, NJ, MPIF.
- B. BERGQUIST: Int. J. Powder Metall. , 1997, 33, (2), 30–40.
- B. J. BERGQUIST and B. C. HILDENWALL: Int. J. Powder Metall. , 1997, 33, (5), 33–44.
- H. SANDEROW and B. BERGQUIST: Int. J. Powder Metall. , 1997, 33, (8), 6–7.
- R. A. JOHNSON and D. W. WICHERN: ‘Applied multivariate statistical analysis’, 3rd edn, 1982, Englewood Cliffs, Prentice Hall International.
- A. P. DEMPSTER, N. M. LAIRD, and D. B. RUBIN: J. Royal Statistical Soc. (B), 1977, 39, (1), 1–38.