TY  - DATA
AU  - Caffarelli, Luis A.
AU  - Salsa, S.
TI  - A geometric approach to free boundary problems 
T2  - Graduate Studies in Mathematics, 
SN  - 9781470421090 (online)
PY  - 2005///
CY  - Providence, R.I.
PB  - American Mathematical Society
KW  - Boundary value problems
KW  - Lipschitz spaces
N1  - Includes bibliographical references (p. 265-267) and index
UR  - https://doi.org/10.1090/gsm/068
ER  -