Pérez-Dacal, Diana, Yolanda Pena-Boquete, and Melchor Fernández. “A Measuring Tourism Specialization: A Composite Indicator for the Spanish Regions”. Almatourism - Journal of Tourism, Culture and Territorial Development 5, no. 9 (January 1, 2014): 35–73. Accessed March 29, 2024. https://almatourism.unibo.it/article/view/4403.