1985
P. Allen and G. Engelen,
Modelling the Spatial Evolution of Population and Employment � The case of the United States,
Lotka-Volterra-Approach to Cooperation and Competition in Dynamic Systems, Proceedings of the 5th Meeting of UNESCO�s Working Group on System Theory held on the Wartburg, Eisenach (GDR) March 5-9, 1984, edited by W. Ebeling and M. Peschel, Wissenschaftliche Beitr�ge herausgegeben von der Wissenschaften der DDR, volume 23, p.191-210
Institut f�r Mathematik
P. Allen, M. Sanglier, G. Engelen and F. Boon,
Towards a new synthesis in the modeling of evolving complex systems,
Environment and Planning B: Planning and Design, volume 12, p.65-84