1. Anonymous (1972). The Decca navigator system. Operating instructions and marine data sheets. The Decca Navigator Co., London
2. Arnold, G. P. (1974). Rheotropism in fishes. Biol. Rev. 49: 515?576
3. Arnold, G. P., Cook, P. H. (1984). Fish migration by selective tidal stream transport: first results with a computer simulation model for the European continental shelf. In: McCleave, J. D., Arnold, G. P., Dodson, J. J., Neill, W. H. (eds.) Mechanisms of migration in fishes. Plenum Press, New York, London, p. 227?261
4. Arnold, G. P., Greer Walker, M., Holford, B. H. (1990). Fish behaviour: achievements and potential of high-resolution sector-scanning sonar. Rapp. P.-v. Réun. Cons. perm. int. Explor. Mer. 189: 112?122
5. Arnold, G. P., Metcalfe, J. D. (1989). Acoustic telemetry: progress and potential in understanding fish behaviour. Proceedings of the Institute of Acoustics. Vol 11. Pt 3. Progress in fisheries acoustics. Institute of Acoustics, Bath, England, p. 96?103