TY - JOUR AU - Charles L. Epstein TI - Subelliptic $\mathrm{Spin}_{\mathbb{C}}$ Dirac operators, II. Basic estimates JO - Annals of mathematics PY - 2007 SP - 723 EP - 777 VL - 166 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4007/annals.2007.166.723/ DO - 10.4007/annals.2007.166.723 LA - en ID - 10_4007_annals_2007_166_723 ER -