Font, Jaume, and Rosel Majoral. “The Road Network of the Catalan Pyrenees: Development and Current State”. Promet - Traffic&Transportation 11, no. 2-3 (October 11, 2012): 61–73. Accessed August 27, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2318.