TY  - JOUR
AU  - Cuoghi,  Paola
AU  - Salani,  Paolo
TI  - Convexity of level sets for solutions to nonlinear elliptic problems in convex rings
JO  - Electronic journal of differential equations
PY  - 2006
VL  - 2006
UR  - http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a41/
LA  - en
ID  - EJDE_2006__2006__a41
ER  -