Martínez-Chapa, O. and Salazar, J. E. (2007) “Urban economy and city problems: recent experience in Mexico”, CienciaUAT, 2(2), pp. 57–61. Available at: https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/448 (Accessed: 11 November 2026).