1. Precision Alloys: A Handbook, Ed. by B. V. Molotilov (Metallurgiya, Moscow, 1974), Vol. 2 [in Russian].
2. V. Baraz and V. Strizhak, “Elinvar Alloys: Peculiarities of Structure and Properties. Part 1,” Nats. Metall., No. 4, 96–98 (2003).
3. A. A. Khlybov and V. A. Skudnov, “Estimation of Structural Changes in Structural Metalic Materials by Acoustic Methods for Guarantee of Exploitation Security of Technical Objects,” in Tr. Nizhegorod. Gos. Tekh. Univ., No. 1 (80), 200–209 (2008).