1. Metals Handbook, 8th Edition, Vol. 1, pp. 820–833; American Society for Metals, Metals Park, Ohio, 1961.
2. F. Borik, “Using Tests to Define the Influence of Metallurgical Variables on Abrasion,” Met. Eng. Quarterly, 12(2) (1972) pp. 33–39.
3. F. P. Bens, “Hardness Testing of Metals and Alloys at Elevated Temperatures,” Trans. ASM, 38 (1947) pp. 505–513.
4. M. J. Donachie, Jr. and O. H. Kriege, “Phase Extraction and Analysis in Superalloys,” Journal of Materials, 7(3) (1972) pp. 269–278.
5. The Design and Analysis of Industrial Experiments, 2nd ed., Ed. by O. L. Davies; Hafner Publishing Co., N.Y., 1960.