1. Metals Handbook, Vol. 17: Nondestructive Evaluation and Quality Control, Metals Park, OH: ASM Int., 1989, 9th ed.
2. Voronkova, L.V., Ul’trazvukovoi kontrol’ chugunnykh otlivok (Ultrasonic Testing of Cast Iron Ingots), Moscow: Mosk. Gos. Tekh. Univ. im. N.E. Baumana, 1998.
3. Andreev, V.V., Voronkova, L.V., Nuraliev, F.A., and Kachanov, V.K., Studying the degradation of cast iron in exploited molds by changes in cast-iron acoustic properties, Liteinoe Proizvod., 2015, no. 1, pp. 14–16.
4. Kachanov, V.K., Kartashev, V.G., and Popko, V.P., Application of signal processing methods to ultrasonic nondestructive testing of articles with high structural noise, Nondestr. Test. Eval., 2001, vol. 17, pp. 15–40.
5. Krautkrämer, J. and Krautkrämer, H., Werkstoffprüfung mit Ultraschall, Berlin: Springer-Verlag, 1986.