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
UR  - http://geodesic.mathdoc.fr/articles/10.2307/121117/
DO  - 10.2307/121117
ID  - 10_2307_121117
ER  -