1. Bazulin, A.E., Bazulin, E.G., Gordeev, Yu.L., Kostylov, A.G., Tikhonov, D.S., and Shtern, A.M., AVGUR mobile measuring systems for automatic ultrasonic testing, V Mire Nerazrushayushchego Kontrolya, 2010, no. 1(47), pp. 16–23.
2. Badalyan, V.G. and Bazulin, E.G., Digital reconstruction of scatterer images by the method of projection in the spectral space, Akust. Zh., 1988, vol. 34, no. 2, pp. 222–231.
3. Bazulin, A.E., Bazulin, E.G., Vopilkin, A.Kh., Kokolev, S.A., Romashkin, S.V., and Tikhonov, D.S., Application of 3D coherent processing in ultrasonic testing, Russ. J. Nondestr. Test., 2014, vol. 50, no. 2, pp. 92–108. DOI: 10.1134/S1061830914020028.
4. Defectoscope A1550 IntroVisor. http://www.acsys.ru/production/detail/a1550-introvisor/ (date of application, March 27, 2015).
5. Kovalev, A.V., Kozlov, V.N., Samokrutov, A.A., Shevaldykin, V.G., and Yakovlev, N.N., Pulse echo in concrete monitoring: interference and spectral selection, Russ. J. Nondestr. Test., 1990, vol. 26, no. 2, pp. 110–118.