1. T. E. Tietz and J. W. Wilson, Behavior and Properties of Refractory Metals, Stanford Univ. Press (1965).
2. R. A. Foyle, Refractory Metallic Materials for Space Technology [Russian translation], Mir, Moscow (1966) p. 130.
3. M. Semchyshen and R. W. Barr, ?Molybdenum and molybdenum-containing refractory alloys,? in: Refractory Metals and Alloys [Russian translation], Metallurgiya, Moscow (1965), p. 149.
4. L. N. Larikov and V. M. Tyshkevich, ?Effect of components of the air on the oxidation resistance of refractory metals of group VIA,? in: Effect of Physicochemical Environment on the Oxidation Resistance of Metallic Materials [in Russian], Nauka, Moscow (1974), p. 21.
5. D. V. Ignatov and R. D. Shamgunova, Oxidation Mechanism of Alloys Based on Nickel and Chromium [in Russian], Izd. Akad. Nauk SSSR, Moscow (1960), p. 11.