1. Variations in length at age of North Sea Cod.;Alphen;ICES C.M. 1984/G,1984
2. A multispecies extension to the Beverton and Holt theory of fishing, with accounts of phosphorous circulation and primary production;Andersen;Meddr Danm. Fisk.- og Havunders., N.S.,1977
3. A multispecies analysis of the effects of variations of effort upon stock composition of eleven North Sea fish species;Andersen;Rapp. P.-v. Réun. Cons. int. Explor. Mer,1978
4. Report of the North Sea Roundfish Working Group on North Sea Cod.;Anonymous;ICES C.M. 1971/F,1971
5. The biology, distribution and state of exploitation of shared stocks in the North Sea area;Anonymous;ICES Coop. Res. Rep.,1978