Cendón, María Laura, Javier Sanz-Cañada, and Delio Lucena-Piquero. “Differential Quality and technical/Managerial Advice Relationships in Andalusian (Spain) Olive Oil Protected Designations of Origin”. Spanish Journal of Agricultural Research 12, no. 4 (October 21, 2014): 869-888. Accessed May 16, 2024. https://sjar.revistas.csic.es/index.php/sjar/article/view/6026.