TY  - JOUR
AU  - Polidoro, S.
AU  -  Ragusa, M. A. 
TI  - Harnack inequality for hypoelliptic ultraparabolic equations with a singular lower order term.
JO  - Revista matemática iberoamericana
PY  - 2008
SP  - 1011
EP  - 1046
VL  - 24
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RMI_2008_2008_1_a38/
LA  - en
ID  - RMI_2008_2008_1_a38
ER  -