1. G. W. Goward:J. Metals, 1970, vol. 22, no. 10, p. 31.
2. G. W. Goward, D. H. Boone, and C. S. Giggins:Trans. TMS-AIME, 1968, vol. 242, p. 1695.
3. T. K. Redden:Trans. TMS-AIME, 1968, vol. 242, p. 1695.
4. G. Llewelyn:ASTM-STP421, 1967, p. 3.
5. Committee on Coatings, Nat. Mat. Adv. Bd., Nat. Res. Council:High-Temperature Oxidation Resistant Coatings, Nat. Acad. Sci.JNat. Acad. Eng., Wash., D.C., 1970.