1. Guz’, A.N., Makhort, F.G., and Gushcha, O.I., Vvedenie v akustouprugost’ (Introduction into Acoustoelasticity), Kiev: Naukova dumka, 1977.
2. Nikitina, N.E., Akustouprugost’. Opyt prakticheskogo primeneniya (Acoustoelasticity: Experience in Practical Application), Nizhni Novgorod: TALAM, 2005.
3. European Standard NF EN 13262-2004: Wheelsets and Bogies. Wheels. Product Requirements, 2004.
4. Branch Standard STO RZhD 1.11.002-2008: Nondestructive Testing. Wheelset and Raiway Vehicle Parts. Technical Requirements to Ultrasonic Testing, 2009.
5. Branch Standard RD 32.144-2000: Acceptance Nondestructive Testing. Solid-Rolled Wheels, Treads and Axles of Wheelsets. Technical Requirements, 2001.