%0 Journal Article
%A Langa, Jose A.
%A Suárez, Antonio
%T Pullback permanence for non-autonomous partial differential equations
%J Electronic Journal of Differential Equations
%D 2002
%V 2002
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a102/
%G en
%F EJDE_2002__2002__a102