TY  - JOUR
AU  - Peter Hess
AU  - Stefan Senn
TI  - On Positive Solutions of a Linear Elliptic Eigenvalue Problem with Neumann Boundary Conditions.
JO  - Mathematische Annalen
PY  - 1981
SP  - 459
EP  - 470
VL  - 258
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1981__258_163611/
ID  - MAN_1981__258_163611
ER  -