TY - JOUR AU - Scharlemann, M. G. AU - Siebenmann, L. C. TI - The Hauptvermutung for $C^\infty $ homeomorphisms II. A proof valid for open 4-manifolds JO - Compositio Mathematica PY - 1974 SP - 253 EP - 264 VL - 29 IS - 3 PB - Noordhoff International Publishing UR - http://archive.numdam.org/item/CM_1974__29_3_253_0/ LA - en ID - CM_1974__29_3_253_0 ER -