TY - JOUR AU - Gerd Grubb AU - Robert T. Seeley TI - Weakly parametric pseudodifferential operators and Atiyah-Patodi-Singer boundary problems. JO - Inventiones mathematicae PY - 1995 SP - 481 EP - 530 VL - 121 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1995__121_3_144309/ ID - IM_1995__121_3_144309 ER -