TY  - BOOK
AU  - Helffer,B & Nier,F
ED  - Nier, F
TI  - Hypoelliptic estimates & spectral theory for fokker-planck operators & witten laplacians
T2  - Lecture notes in mathematics 1862
SN  - 9783540242000
U1  - 5.03+10.07+10.04+13.04 
PY  - 2005///
CY  - Berlin
PB  - Springer
ER  -