Grau, Amàlia, Marta Linde, and Antoni Mª Grau. “Reproductive Biology of the Vulnerable Species Sciaena Umbra Linnaeus, 1758 (Pisces: Sciaenidae)”. Scientia Marina 73, no. 1 (March 30, 2009): 67–81. Accessed May 2, 2025. https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1043.