1. W. Arbiter: New High Temperature Intermetallic Materials. WADC Technical Report No. 53-190. Amer. Electrometals Corp., 1953.
2. W. Arbiter: New High Temperature Intermetallic Materials II. WADC Technical Report No. 53-190, Part II. Amer. Electrometals Corp., 1953.
3. W. A. Maxwell and E. M. Grahla: Investigation of Nickel-Aluminum Alloys Containing From 14–34 Pct Aluminum. NACA Technical Note No. 3259, 1954.
4. E. M. Grahla: Investigation of the Ni3Al Phase of Nickel-Aluminum Alloys. NACA Technical Note No. 3660, 1956.
5. R. Silverman, W. Arbiter, and F. Hodi: Effect of Sigma Phase on Co-Cr-Mo Base Alloys. ASM Trans., 1957, vol. 49.