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Research Papers
| Investigations of the barrier perception mechanisms of the blind | |
| Czesław PUZYNA | 89-108 |
| Acoustical investigations of the effect of additives on the elastic properties of raw kaolin | |
| Ewa RYLL-NARDZEWSKA, Jan RYLL-NARDZEWSKI, Andrzej KULIK, Henryk PIECZAROWSKI | 109-116 |
| Diffraction of a high intensity light by ultrasound in nonlinear liquids | |
| Marek KOSMOL, Antoni ŚLIWIŃSKI | 117-130 |
| How the structure of a medium is seen by an acoustic wave | |
| Ignacy MAŁECKI | 131-140 |
| Emission, absorption and propagation of acoustic THz-Waves in solids | |
| W. EISENMENGER | 141-156 |
| Acoustics and the properties of materials | |
| R. W. B. STEPHENS | 157-168 |
| Certain problems of noise annoyance | |
| Aurelian STAN | 169-176 |
Chronicle
| Report on the second congress fase – 78 Warsaw, September 18–22, 1978 | |
| E. OZIMEK | 177-189 |