%0 Journal Article %A Scharlemann, M. G. %A Siebenmann, L. C. %T The Hauptvermutung for $C^\infty $ homeomorphisms II. A proof valid for open 4-manifolds %J Compositio Mathematica %D 1974 %P 253-264 %V 29 %N 3 %I Noordhoff International Publishing %U http://archive.numdam.org/item/CM_1974__29_3_253_0/ %G en %F CM_1974__29_3_253_0