1. E.P. Danelija, V.M. Rozenberg, Internally Oxidized Alloys, Metallurgia, Moscow, 1978, p. 232 (in Russian).
2. Structure and mechanical properties of internally oxidized Ta-8 Pct W-2 Pct Hf (T-111) alloy
3. A.D. Korotaev, A.N. Tyumentsev, V.F. Sukhovarov, Dispersion Hardening of Refractory Metals, Nauka, Novosibirsk, 1989, p. 210 (in Russian).
4. E. Fromm, E. Gebhardt, Gases and Carbon in Metals, Metallurgia, Moscow, 1980, p. 712 (Russian translation).