1. Andrade J.P. 1989. The flatfishes of the Ria Formosa, southern Portugal: results of a three-year survey. In: Ros J. (ed.), Topics In Marine Biology, Proceedings of the 22nd European Marine Biology Symposium 53(2–3), 671–676.
2. Ambrogi R., Ferrari I. and Geraci S. 1989. Biotic exchange between river, lagoon and sea: the case of zooplankton in the Po Delta. In: Ros J. (ed.), Topics In Marine Biology, Proceedings of the 22nd European Marine Biology Symposium, 53(2–3), pp. 601–608.
3. Waterbird Use of Saltmarsh Ponds Created for Open Marsh Water Management