1. V. A. Livanov, A. A. Bukhanova, and B. A. Kolachev, Hydrogen in Titanium [in Russian], Metallurgiya, Moscow (1962), p. 227.
2. B. S. Krylov, "Kinetics of precipitation of hydrogen from titanium materials in vacuum," in: Titanium and Its Alloys [in Russian], Izd. AN SSSR, No. 10, Moscow (1963), pp. 159?167.
3. E. A. Borisova, I. I. Shashenkova, and R. D. Glebova, "Vacuum annealing of titanium alloys", Metal. i Term. Obrabotka Metal., No. 5, 10?13 (1972).