1. E. G. Nazarov and Yu. V. Latyshov, Improvement of the Properties of Precipitation-Hardening Heat-Resisting Steels and Alloys, No. 23-64-1349/26 [in Russian], GOSINTI, Moscow (1964).
2. A. M. Borzdyka and V. Z. Tseitlin, The Structure and Properties of Heat-Resisting Alloys in Connection with Heat Treatment, NTO MAShPROM [in Russian], Mashinostroenie, Moscow (1967).
3. É. I. Belikova and E. G. Nazarov, Metal. i Term. Obrabotka Metal., No. 7 (1962).
4. W. Betteridge and A. Franklin, J. Inst. Metals,85 (1957).
5. W. Betteridge and Smith, Heat-Resisting Metallic Materials [Russian translation], IL, Moscow (1958).