TY  - JOUR
AU  - Salsa, Sandro
TI  - Viscosity Solutions of Two-Phase Free Boundary Problems for Elliptic and Parabolic Operators
JO  - Bollettino della Unione matematica italiana
PY  - 2012
SP  - 263
EP  - 280
VL  - 5
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BUMI_2012_9_5_2_a5/
LA  - en
ID  - BUMI_2012_9_5_2_a5
ER  -