Calama, R., G. Madrigal, J. A. Candela, and G. Montero. “Effects of Fertilization on the Production of an Edible Forest Fruit: Stone Pine (Pinus Pinea L.) Nuts in South-West Andalusia”. Forest Systems 16, no. 3 (December 1, 2007): 241-252. Accessed August 2, 2026. https://fs.revistas.csic.es/index.php/fs/article/view/1013.