1. L. D. Rozenberg, Physics and Technology of Powerful Ultrasound. Vol. 3. Physical Foundations of Ultrasound Technology, Ed. by L. D. Rozenberg (Nauka, Moscow, 1970).
2. L. E. Spencer, “Efficient cleaning methods,” Met. Inds., No. 2, 91 (1957).
3. L. D. Rozenberg, “On the physics of ultrasonic cleaning,” Ultrasonic News, No. 4, 16 (1960).
4. B. E. Nolting and E. A. Nepairas, “Cavitation produced by ultrasonics,” Proc. Phys. Soc. B 63 (9), 674 (1950).
5. A. B. Agranat, I. V. Bashkirov, and Yu. I. Kitai-gorodskii, “Method for increasing the efficiency of ultrasound action on the processes occurring in liquids,” Ul’trazv. Tekh., No. 3, 38 (1964).