FERNANDEZ, Enrique. Historia de un reto. Acta Herediana, [S. l.], v. 48, p. 15, 2014. DOI: 10.20453/ah.v48i0.1804. Disponível em: https://revistas.upch.edu.pe/index.php/AH/article/view/1804. Acesso em: 4 may. 2024.