@article{CM_1974__29_3_253_0,
     author = {Scharlemann, M. G. and Siebenmann, L. C.},
     title = {The {Hauptvermutung} for $C^\infty $ homeomorphisms {II.} {A} proof valid for open 4-manifolds},
     journal = {Compositio Mathematica},
     pages = {253--264},
     publisher = {Noordhoff International Publishing},
     volume = {29},
     number = {3},
     year = {1974},
     zbl = {0315.57010},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1974__29_3_253_0/}
}