«Outdoor learning»: revisión histórica. Proyecto Learning Outside the Classroom. Padres y Maestros / Journal of Parents and Teachers, [S. l.], n. 379, p. 6–11, 2019. DOI: 10.14422/pym.i379.y2019.001. Disponível em: https://revistas.comillas.edu/padresymaestros/article/view/11734. Acesso em: 5 dic. 2025.