1. J. M. Larson: “P/M IN-100-Processing, Microstructures and Mechanical Properties,≓Modern Developments in P/M, vol. 8, p. 537, 1973 International Powder Metallurgy Conference, 1974.
2. J. C. Freche, W. J. Walters, and R. L. Ashbrook: NASA TN D5248, March, 1969.
3. G. I. Friedman and P. Loewenstein: AFML-TR-68-321, October, 1968.
4. P. S. Kotval: NASA CR-72644, December, 1969.
5. G. I. Friedman:The Powder Metallurgy at Five Nickel Superalloys, Whittaker College Nuclear Metals Division, W. Concord, Mass., January, 1971.