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In Memoriam
| In memory of Stefan Czarnecki, man and scientist | |
| Zbigniew ENGEL, Andrzej RAKOWSKI | 175-184 |
Research Papers
| Focusing of an ultrasonic beam by means of a piezoelectric annular array | |
| T. WASZCZUK, T. KUJAWSKA, J. C. SOMER | 185-204 |
| Detectability of calcifications in breast tissues by the ultrasonic echo method | |
| Leszek FILIPCZYŃSKI | 205-222 |
| An ultrasonic method for the investigation of coronary graft patency | |
| Andrzej NOWICKI, John REID | 223-234 |
| Mechano-acoustic feedback in the case of an interaction between a sound source and a resonance system | |
| M. MEISSNER | 235-248 |
| Optical generation of acoustic waves | |
| Andrzej MLECZKO, Roman BUKOWSKI, Zygmunt KLESZCZEWSKI | 249-254 |
| Ultrasonic investigations of 2.ethylhexadiole-1.3. In the region of viscoelastic relaxation | |
| Marek WACIŃSKI, Ryszard PŁOWIEC | 255-268 |