Badía-Lázaro, Ricardo, y Eugenio Antonio Climent-López. «From Linear to Zonal Management Contracts: A Proposal for the Public Inter-Urban Transportation of Travelers by Road in Aragón». Revista de Estudios Andaluces, no. 38 (julio 25, 2019): 228–230. Accedido abril 28, 2024. https://revistascientificas.us.es/index.php/REA/article/view/9823.