1. Barnes, H. and M. Barnes: Biometry of the copepod Calanus finmarchicus (Gunn.) in stage V and VI. J. mar. biol. Ass. U.K. 32, 305?313 (1953)
2. Battaglia, B.: Selezione e rapporti dei sessi nel copepode harpacticoide Tisbe gracilis (T. Scott). Atti Acad. naz. Lincei Rc. 24, 327?335 (1958)
3. Battaglia, B.: Sex ratio in Tisbe gracilis, a marine copepod. Proc. int. Congr. Zool. 15 (24), 1?2 (1959)
4. Battaglia, B.: Facteur thermique et différenciation saisoniere chez un copépode harpacticoide de la lagune de Venise. Vie Milieu, 10, 1?13 (1960)
5. Clarke, R. B.: Environmental determination of reproduction in polychaetes. In: Reproductive ecology of marine invertebrates, pp 107?121. Ed. by S. E. Stancyk. Colombia, South Carolina: University of South Carolina Press 1979