1. Basov G.G., Markov V.L., Kireev A.N., Volkova S.A. 2004. Features of ultrasonic testing in the radial direction of wheelset axles in railway rolling stock. Technical diagnostics and nondestructive testing. Kiev.: The E O. Paton Electric Welding Institute. №3. 49-50.
2. Gavriluk A.F., Rjabec T.A. 2007. State and analysis of safety of motion on the railways of Ukraine. Ways of development of facilities NDT. Non-destructive testing. Kiev.: Association «EYE». №2. 13-21.