Research Papers
| Professor Roman Wyrzykowski on the occasion of the 75th birthday and the 50th anniversary of scientific activity | |
| H. Czyż, A. Snakowska | 375-382 |
| Model of an acoustic source with discontinuous optimal elements | |
| A. Brański | 383-396 |
| Theoretical and experimental analysis of the band noise radiated from a hard-walled cylindrical duct | |
| A. Snakowska, H. Idczak | 397-410 |
| Propagation of sound waves of finite amplitude in a horn at frequencies below the cut-off frequency | |
| T. Zamorski | 411-422 |
| Acoustic power of fluid-loaded circular plate located in finite baffle | |
| L. Leniowska | 423-436 |
| On the relation between the inertial coagulation and the amplitudal effect | |
| H. Czyż | 437-444 |
| The motion of gas bubbles in a liquid under the influence of acoustical standing wave | |
| H. Czyż, W. Ściuk | 445-454 |
| The real acoustic power of a planar annular membrane radiation for axially-symmetric free vibrations | |
| W.J. Rdzanek, W.P. Rdzanek | 455-462 |
| The mutual impedance of two circular plates for high frequency wave radiation | |
| P. Witkowski | 463-472 |
Chronicle
| Chronicle | |
| none none | 473-480 |