Géographie-cités 2011, Tous droits réservés
DECROLY J.-M., GRASLAND C., 1997
in : Holm E. (ed), Modelling Space and Network : Progress in Theoretical and Quantitative geography [Proceedings from the 7th European Colloquium on Theoretical and Quantitative Geography in Stockholm Sept. 5-8 1991], Gerum Kulturgeografi, 193-220.
Géographie-cités 2011, Tous droits réservés