TY  - JOUR
AU  - Luis A. Caffarelli
AU  - Lavi Karp
AU  - Henrik Shahgholian
TI  - Regularity of a free boundary with application to the Pompeiu problem
JO  - Annals of mathematics
PY  - 2000
VL  - 151
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM_2000_151_1_a7/
ID  - AM_2000_151_1_a7
ER  -