G. Haag: Sprawling cities in Germany (FrancoAngeli, 2002)
W.Weidlich, G. Haag: An Integrated Model of Transport and Urban Evolution (Springer, 1999)
G.Haag, U.Mueller, K.Troitzsch (eds.): Economic Evolution and Demographic Change: Formal Models in Social Sciences, (Springer, 1993)
G.Haag: Dynamic Decision Theory. Applications to Urban and Regional Topics, (Kluwer, 1989)
W.Weidlich, G.Haag (eds.): Interregional Migration, Dynamic Theory and Comparative Analysis, (Springer, 1988)
W.Weidlich, G.Haag: Concepts and Models of a Quantitative Sociology, The Dynamics of Interaction Populations, Springer Series of Synergetics, Vol.14 (Springer, 1983)