Badía-Lázaro, Ricardo, y Eugenio Antonio Climent-López. 2019. «From Linear to Zonal Management Contracts: A Proposal for the Public Inter-Urban Transportation of Travelers by Road in Aragón». Revista De Estudios Andaluces, n.º 38 (julio):228-30. https://revistascientificas.us.es/index.php/REA/article/view/9823.