1. Bagenal T.B. and Braum E., 1978. Eggs and early life history.In: Methods for assessment of fish production in fresh waters (3rdedn.), International Biological Program Handbook,3, 101–136.
2. Billard R. and Breton B., 1978. Rhythms of reproduction in teleost fish.In: Thorpe J.E. (ed.), Rhythmic activities of fishes, Academic Press, London, 31–53.