TY  - JOUR
AU  - C. CLARK
TI  - Inequalities of Poincaré Type and Applications to Singular Elliptic Differential Operators.
JO  - Mathematische Annalen
PY  - 1968
SP  - 305
EP  - 316
VL  - 176
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1968__176_161697/
ID  - MAN_1968__176_161697
ER  -