TY  - JOUR
AU  - Mikhail V. Safonov
AU  - Yu Yuan
TI  - Doubling properties for second order parabolic equations.
JO  - Annals of mathematics
PY  - 1999
VL  - 150
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.2307/121104/
DO  - 10.2307/121104
ID  - 10_2307_121104
ER  -