TY - JOUR AU - A. Edward Nussbaum TI - Extension of Positive Definite Functions and Representation of Functions in Terms of Spherical Functions in Symmetrie Spaces of Noncompact Type of Rank l. JO - Mathematische Annalen PY - 1975 SP - 97 EP - 116 VL - 215 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAN_1975__215_162704/ ID - MAN_1975__215_162704 ER -