1. Swimbladder ‘behaviour’ and target strength;Blaxter;Rapports et Procès-Verbaux des Réunions Conseil International pour l'Exploration de la Mer,1990
2. Units, symbols and definitions in fisheries acoustics;Craig,1981
3. Effects of noise on in-situ fish target-strength measurements obtained with a dual-beam transducer system;Ehrenberg,1978