TY - JOUR AU - TH¢GER BANG TI - The theory of metric spaces applied to infinitely differentiable functions JO - Mathematica Scandinavica PY - 1953 SP - 137 EP - 152 VL - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MS2_1953__1_165496/ ID - MS2_1953__1_165496 ER -