TY  - JOUR
AU  - Herbert Amann
TI  - Existence and Multiplicity Theorems for Semi-linear Elliptic Boundary Value Problems.
JO  - Mathematische Zeitschrift
PY  - 1976
SP  - 281
EP  - 295
VL  - 150
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1976__150_172423/
ID  - MZ_1976__150_172423
ER  -