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3. ANDERSEN, K.P., and E. URSIN, 1977 - A multispecies extension to the Beverton and Hol t theor y of f ishing , with accounts of phosphorous circulation and primary producUon. Meddr Danm, Fisk.- og Havunde rs ., N.S. 7 : 319–435 .
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5. ANONYMUS , 1982 - Repor t of t he meeting of the coo rdi nators of the North Sea Stomach Sampling Proj ec t 1981 . ICES C.M. 1982/G :33 (mimeo) .