Search for: [References = "Limtanakool, N., Dijst, M., \& Schwanen, T. \(2007\). A theoretical framework and methodology for characterising national urban systems on the basis of flows of people\: empirical evidence for France and Germany. Urban Studies, 44\(11\), 2123‑2145. https\:\/\/doi.org\/10.1080\/00420980701518990"]