1. Birchenall, L. E., and A. F. Mehl, Trans. Am. Inst. Met. Eng. 188:144–49 (1950).
2. Smithells, C. J., Metal Reference Book, 3rd Ed. Vol. 2, p. 593.
3. Upthegrove, W. R., and M. J. Sinnott, Trans. Am.Soc. Met. 50:1030–46 (1958).
4. Tikkanen, M., Contribution to the Theory of Sintering, Jernkontorets Powder Metallurgy Research Panel, Stockholm, 1963.
5. Bockstiegel, G., J. Metals 8:580–85 (1956).