1. D. A. HUMPHREYS, “Critical Heat Flux and Pressure Drop in an Internally Heated Annulus with an Exterior Conducting Wall,” WAPD-TM-1528, Bettis Atomic Power Laboratory (Oct. 1982).
2. L. R. BOLLINGER et al. “Thoria Shim Rod Design for a Light Water Breeder,” KAPL-4159, Knolls Atomic Power Laboratory (May 1983).