ZULETA RUIZ, Beethoven. Technological Challenges of the City of the Future. Revista Ambiental ÉOLO, Medellín, v. 1, n. 19, p. 147–160, 2020. DOI: 10.5281/zenodo.21409954. Disponível em: https://revistaeolo.fconvida.org/index.php/eolo/article/view/877. Acesso em: 8 nov. 2026.