1. J. B. Guernsey:Trans. SAE, 1970, vol. 79, pp. 2540–47 (SAE Paper No. 700856).
2. H. J. Rack, D. Kalish, and K. D. Fike:Mater. Sci. Eng., 1970, vol. 6,1970, pp. 181–98.
3. J. A. Feeney and M. J. Blackburn:Met. Trans., 1970, vol. 1, pp. 3309–23.
4. J. G. Dunleavy and J. W. Spretnak: DMIC Memorandum 244, Battelle Memorial Institute, Columbus, Ohio, 1969.
5. H. J. Henning: DMIC Memorandum 251, Battelle Memorial Institute Columbus, Ohio, 1970.