Diniz, Francisco José Lopes de souse, and Maria Teresa Couceiro da Costa Sequeira e Sousa Sequeira. “Portrait of Portugal’s Nut Iii Regions in Productive Location Clusters ”. Economy of Regions 11, no. 1 (March 26, 2015): 104–114. Accessed June 17, 2026. https://www.economyofregions.org/ojs/index.php/er/article/view/2347.