Villarroel, M., J. M. R. Alvariño, and J. M. Duran. “Aquaponics: Integrating Fish Feeding Rates and Ion Waste Production for Strawberry Hydroponics”. Spanish Journal of Agricultural Research 9, no. 2 (May 30, 2011): 537-545. Accessed August 1, 2026. https://sjar.revistas.csic.es/index.php/sjar/article/view/1758.