1. Anderson, R., Gutreuter, S., 1983. Length, weight, and associated structural indices. In: Nielsen, L., Johnson, D. (Eds.), Fisheries Techniques. American Fisheries Society, pp. 283–300.
2. Bagenal, T.B., Tesch, F.W., 1978. Age and growth. In: Bagenal, T. (Ed.), Methods for Assessment of Fish in Freshwaters, 3rd Edition. IBP Handbook No. 3. Blackwell Scientific Publications, Oxford, pp. 101–136 (Chapter 5).
3. On length–weight relationships. 2. Computing mean weights from length statistics;Beyer;Fishbyte,1991
4. DGPA, 2000a. DATAPESCAS Difusão. No. 43, Janeiro–Dezembro 1999. Direcção Geral das Pescas e Aquicultura, Lisboa.
5. DGPA, 2000b. Recursos da Pesca. Série Estatı́stica 1999. No. 13 A–B. Direcção Geral das Pescas e Aquicultura, Lisboa, 168 pp.