TY - JOUR AU - Camillo Melzi TI - Sub-Laplacian with drift in nilpotent Lie groups JO - Colloquium Mathematicum PY - 2003 SP - 41 EP - 53 VL - 96 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm96-1-5/ DO - 10.4064/cm96-1-5 LA - en ID - 10_4064_cm96_1_5 ER -