1967

9. Pavlov V.S., Postnikov V.S., Gridnev S.A., Glozman I.A. Method and apparatus for the study of mechanical quality of piezoceramic transmitters in the frequency range 10-200 kHz // Science-technical seminar on technique and methods of ultrasonic measurements, Leningrad, April 1967.
10. Postnikov V.S., Pavlov V.S., Gridnev S.A. Investigation of ultrasonic velocity in piezoelectric transmitters // Meeting on quantum acoustic and ultrasonic interferometry, Vilnius, June 1967.