Huertas-Delgado, F. J., Chillón, P., Barranco-Ruiz, Y., Herrador-Colmenero, M., Rodríguez-Rodríguez, F., & Villa-González, E. (2018). Parental perceived barriers to active commuting to school in Ecuadorian youth. In Journal of Transport & Health (Vol. 10, pp. 290–296).