TY  - JOUR
AU  - Langa,  Jose A.
AU  - Suárez,  Antonio
TI  - Pullback permanence for non-autonomous partial differential equations
JO  - Electronic journal of differential equations
PY  - 2002
VL  - 2002
UR  - http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a102/
LA  - en
ID  - EJDE_2002__2002__a102
ER  -