Faísca, Carlos Manuel, y Dulce Freire. «Not All Wheats Are the Same: Selection and Improvement of Wheat in Portugal since Early Modern Times (16th to 20th Centuries)». Investigaciones de Historia Económica 21, no. 1 (enero 31, 2025): 59–86. Accedido febrero 11, 2025. https://recyt.fecyt.es/index.php/IHE/article/view/113375.