(1)
Hernández, J. C.; Brito, A.; García, N.; Gil-Rodríguez, M. C.; Herrera, G.; Cruz-Reyes, A.; Falcón, J. M. Spatial and Seasonal Variation of the Gonad Index of Diadema Antillarum (Echinodermata:Echinoidea) in the Canary Islands. Sci. mar. 2006, 70, 689-698.