Evelio Echevarría, The Andes: The Complete History of Mountaineering in High South America. Procesos. Revista Ecuatoriana de Historia, [S. l.], n. 52, p. 268–272, 2021. DOI: 10.29078/procesos.v.n52.2020.2624. Disponível em: https://ojs.freddyguerrero.com/index.php/procesos/article/view/2624. Acesso em: 29 oct. 2025.