System of parks: origin and evolution of a ’structucturing’ principle of the urban. Ciudades, [S. l.], n. 12, p. 265–276, 2017. DOI: 10.24197/ciudades.12.2009.265-276. Disponível em: https://revistas.uva.es/index.php/ciudades/article/view/1233. Acesso em: 11 may. 2026.