TY - JOUR AU - Christopher D. Sogge TI - Propagation of singularities and maximal functions in the plane. JO - Inventiones mathematicae PY - 1991 SP - 349 EP - 376 VL - 104 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1991__104_1_143887/ ID - IM_1991__104_1_143887 ER -