TY  - JOUR
AU  - C. Bandle
AU  - A. Wagner
TI  - Isoperimetric Inequalities for the Principal Eigenvalue of a Membrane and the Energy of Problems with Robin Boundary Conditions
JO  - Journal of convex analysis
PY  - 2015
SP  - 627
EP  - 64
VL  - 22
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/JCA_2015_22_3_JCA_2015_22_3_a1/
ID  - JCA_2015_22_3_JCA_2015_22_3_a1
ER  -