Orban-Ferauge, Françoise, and Xavier Duyck. “What Happens When Internal But Also External Factors Configurate Urban Growth? The Case of Namur”. Raumforschung Und Raumordnung | Spatial Research and Planning, vol. 52, no. 1, Jan. 1994, pp. 20-24, https://doi.org/10.14512/rur.2198.