1. Ermolov, I.N., Teoriya i praktika ul’trazvukovogo kontrolya (Theory and Practice of the Ultrasonic Inspection), Moscow: Mashinostroenie, 1981.
2. Konovalov, S.I. and Kuz’menko, A.G., Osobennosti impul’snykh rezhimov raboty elektroakusticheskikh p’ezoelektricheskikh preobrazovatelei (Features of the Pulse Operating Modes of Electroacoustic Piezoelectric Transducers), St. Petersburg: Politekhnika, 2014.
3. Domarkas, V.I. and Kazhis, R.-I. Yu., Kontrol’no-izmeritel’nye p’ezoelektricheskie preobrazovateli (Measuring Piezoelectric Transducers), Vilnus: Mintis, 1975.
4. Danilov, V.N., Selection of the parameters of a probe during immersion ultrasonic inspection, Russ. J. Nondestr. Test, 2007, no. 5, p. 336.
5. Danilov, V.N., Application of quarter-wavelength matching wear plates in normal transducers, Russ. J. Nondestr. Test., 2008, no. 5, p. 351.