WIDMER, Philippe K.; ELIAS, George; ZWEIFEL, Peter. Improving Efficiency through Consolidation of Jurisdictions? Evidence from the Cantons of Switzerland. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 71, n. 4, p. 295–305, 2013. DOI: 10.1007/s13147-013-0239-6. Disponível em: https://rur.oekom.de/index.php/rur/article/view/688. Acesso em: 15 aug. 2026.