Elliott W. Montroll, ON SOME MATHEMATICAL MODELS OF SOCIAL PHENOMENANonlinear Equations in Abstract Spaces#R##N#Proceedings of an International Symposium on Nonlinear Equations in Abstract Spaces, Held at the University of Texas at Arlington, Arlington, Texas, June 8–10, 1977. pp. 161- 216 ,(1978) , 10.1016/B978-0-12-434160-9.50018-7