1. Data on the engineering performance of Canadian East Coast groundfish otter trawls;Carrothers;Fish. Res. Board Can., Tech. Rep. No. 125,1969
2. Trawl drag area and netting geometry;Dickson;Inst. Fish. Technol. Res., Bergen, Tech. Rep.,1980
3. Otterboard design and performance;FAO,1975
4. Development of a method for the calculation of the resistance of a trawl net;Fridman;Fischereiforschung,1973
5. Fluid Dynamic Drag;Hoerner,1965