Rita Sá, Constança Bexigaa, Pedro Veigaa, Lina Vieiraa & Karim Erzini «Feeding ecology and trophic relationships of fish species in the lower Guadiana River Estuary and Castro Marim e Vila Real de Santo António salt marsh». Estuarine, Coastal and Shelf Science, 70, 1–2, 2006, pàg. 19–26. DOI: 10.1016/j.ecss.2006.05.038.