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Research Papers
| In quest for Cardinal Vowels | |
| W. JASSEM, M. KRZYŚKO | 343-356 |
| Measurements of dispersion of ultrasonic wave velocity in thin layers by the ultrasonic spectroscopy | |
| W. WOJDOWSKI | 357-374 |
| Shear acoustic waves in plates | |
| P. KIEŁCZYŃSKI, W. PAJEWSKI, M. SZALEWSKI | 375-388 |
| Surface acoustic wave scattering by elliptic metal disc on anisotropic piezoelectric halfspace | |
| E. DANICKI | 389-412 |
| Acoustic pressure of a freely vibrating circular plate without baffle | |
| L. LENIOWSKA, W. RDZANEK | 413-423 |
| Mutual acoustic impedance of circular sources with parabolic vibration velocity distribution for high frequencies | |
| L. LENIOWSKA, W. RDZANEK, P. WITKOWSKI | 425-431 |
| The sound power of a circular membrane for axially-symmetric vibrations | |
| W. RDZANEK, P. WITKOWSKI | 433-438 |
| Mutual impedance of circular plate for axially symmetric free vibrations at high frequency of radiating waves | |
| W. RDZANEK | 439-448 |
Chronicle
| International Congress on Ultrasonics (ICU–90) | |
| Z. KACZKOWSKI | 449-450 |