TY  - JOUR
AU  - N.O. Wallin
TI  - A Problem for Elliptic Partial Differential Operators Defined on an Arbitrary Open Set.
JO  - Mathematica Scandinavica
PY  - 1961
SP  - 185
EP  - 196
VL  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1961__9_165774/
ID  - MS2_1961__9_165774
ER  -