%A Workshop on Traffic and Granular Flow
%A Helbing, Dirk
%A Herrmann, Hans J.
%A Schreckenberg, Michael
%A Wolf, D. E.
%T Traffic and granular flow '99 : social, traffic, and granular dynamics
%I Springer
%D 2000
%U https://ci.nii.ac.jp/ncid/BA47295014