Pascual, S., A. F. González, C. Gestal, E. Abollo, and A. Guerra. 2001. “Epidemiology of Pennella Sp. (Crustacea: Copepoda), in Exploited Illex Coindetii Stock in the NE Atlantic”. Scientia Marina 65 (4):307-12. https://doi.org/10.3989/scimar.2001.65n4307.