ÁLVAREZ OTERO, Javier, María Luisa DE LÁZARO Y TORRES, and María Jesús GONZÁLEZ GONZÁLEZ. “A Cloud-Based Giscience Learning Approach to Spanish National Parks”. European Journal of Geography 9, no. 2 (October 12, 2018). Accessed October 16, 2025. https://www.eurogeojournal.eu/index.php/egj/article/view/133.