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2. R. T. Knapp, J. W. Daley, and R. G. Hammitt, Cavitation, McGraw-Hill, New York (1970).
3. E. S. Padalka, Ultrasound in the Petroleum Industry [in Russian], Gosudarstvennoe Izd. Tekhn. Lit., Kiev (1962).
4. D. A. Gershgal and V. M. Fridman, Ultrasound Equipment [in Russian], Energiya, Moscow (1976).
5. I. M. Fedotkin and A. F. Nemchin, Use of Cavitation in Manufacturing Processes [in Russian], Vishcha Shkola, Kiev (1984).