1. Recent Experiments with Net of Hexagonal Meshes in Purse Seines;Beltestad;ICES C.M. 1980/B:26,1980
2. Purse Seine with Hexagonal Mesh. NOAA, National Marine Fisheries Center, La Jolla, CA;Beltestad;Administrative Rep. No. LJ-81-12,1981
3. The importance of vision in the reaction of fish to driftnets and trawls;Blaxter,1964
4. Trawl Drag Area and Netting Geometry;Dickson;Institute of Fisheries Technology Research Report,1980
5. A light intensity threshold for schooling in the Atlantic mackerel, Scomber scombrus;Glass;J. Fish. Biol.,1986