PARYSEK, Jerzy J.; MIERZEJEWSKA, Lidia. From the city as a system to the system of cities: The systemic approach to urban planning. Quaestiones Geographicae, [S. l.], v. 45, n. 2, p. 83–100, 2026. DOI: 10.14746/quageo-2026-0021. Disponível em: https://pressto.amu.edu.pl/index.php/qg/article/view/55228. Acesso em: 4 oct. 2026.