@article{CMH_1972__47_139504,
     author = {L.C. Siebenmann},
     title = {Deformation of {Homeomorphismus} on {Stratified} {Sets}},
     journal = {Commentarii mathematici Helvetici},
     pages = {123--163},
     publisher = {mathdoc},
     volume = {47},
     year = {1972},
     zbl = {0252.57012},
     url = {http://geodesic.mathdoc.fr/item/CMH_1972__47_139504/}
}