Ollero Ojeda, Alfredo. “Project Management of Risks and Environmental Changes in the Middle Ebro: River Restoration and Territorial resilience.: Research Note”. Geographicalia, no. 75 (December 27, 2023): 201–206. Accessed December 5, 2025. https://papiro.unizar.es/ojs/index.php/geographicalia/article/view/9978.