TY  - JOUR
AU  - Wolfgang Walter
TI  - A Theorem on Elliptic Differential Inequalities with an Application to Gradient Bounds.
JO  - Mathematische Zeitschrift
PY  - 1988
SP  - 293
EP  - 300
VL  - 200
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1988__200_3_174009/
ID  - MZ_1988__200_3_174009
ER  -