TY - JOUR AU - Michael Christ AU - Alexander Nagel AU - Elias M. Stein AU - Stephen Wainger TI - Singular and maximal Radon transforms: Analysis and geometry JO - Annals of mathematics PY - 1999 VL - 150 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM_1999_150_2_a2/ ID - AM_1999_150_2_a2 ER -