1. V. Ya. Kirshenbaum (ed.), Methods of Nondestructive Testing. A Specifier of the Differences in the National Standards of Different Countries [in Russian], Tsentr Nauka i Tekhnika, Moscow, Vols. 1, 2 (1992), Vol. 3 (1995).
2. V. V. Kozlov, The Checking of Means of Nondestructive Testing [in Russian], Izd. Standartov, Moscow (1989).
3. I. N. Ermolov and Yu. V. Lange, Nondestructive Testing. Vol. 3. Ultrasonic Testing: A Reference Book [in Russian], Mashinostroenie, Moscow (2004).
4. GOST 14782-84, Nondestructive Testing. Welded Joints. Ultrasonic Methods.
5. A. N. Pechenkov and V. E. Shcherbinin, Some Direct and Inverse Problems of Technical Magnetostatics [in Russian], Izd. UrO RAN, Ekaterinburg (2004).