Orban-Ferauge, F. and Duyck, X. 1994. What Happens When Internal but Also External Factors Configurate Urban Growth? The case of Namur. Raumforschung und Raumordnung | Spatial Research and Planning. 52, 1 (Jan. 1994), 20–24. DOI:https://doi.org/10.14512/rur.2198.