Research Papers
| Long-time spectra of radio broadcast programme signals | |
| Denes Huszty | 125-142 |
| Time error in perception of sound brightness | |
| Tomasz Łętowski, Jacek Smurzyński | 143-146 |
| Influence of ribs on the acoustic behaviour of piano resonant plates | |
| U. Muller | 147-156 |
| Verification of the method for prediction of the equivalent level of freely flowing traffic noise | |
| R. Makarewicz, J. Jarzęcki | 157-168 |
| The use of an image analyser for dimensional quantification in ultrasonic images | |
| Robert C. Chivers, Henry J. W. Dudley | 169-180 |
| Measurements of propagation velocity of ultrasonic wave at a frequency of 10 mhz in pure and deuterated KDP single crystals* | |
| Olga Delekta, Aleksander Opilski | 181-188 |