1. Thermionic Properties of UC
2. Characteristics of UC, ZrC, and (ZrC) (UC) as Thermionic Emitters
3. L. N. Grossman, A. I. Kaznoff and P. Stephas, Structural and Emitter Materials for Nuclear Thermionic Converters, G.E. Report Vallecitos Atomic Laboratory.
4. Laboratoire Central des Industries Electriques;Septier;Thesis,1954
5. A. Septier, private communication.