@article{GDZPPN002088320, title = {Codimension-One Imbedded Spheres}, journal = {Inventiones mathematicae}, volume = {11}, year = {1970}, pages = {44-56}, zbl = {0184.48603}, url = {http://dml.mathdoc.fr/item/GDZPPN002088320} }
KAHN, P.J. Codimension-One Imbedded Spheres. Inventiones mathematicae, Tome 11 (1970) pp. 44-56. http://gdmltest.u-ga.fr/item/GDZPPN002088320/