%0 Journal Article
%A John W. Barrett
%A Leonid Prigozhin
%T Dual formulations in critical state problems
%J Interfaces and free boundaries
%D 2006
%P 349-370
%V 8
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4171/ifb/147/
%R 10.4171/ifb/147
%F 10_4171_ifb_147