@article{IM_1970__10_142024,
     author = {M. KATO},
     title = {Embedding {Spheres} and {Balls} in {Codimension}},
     journal = {Inventiones mathematicae},
     pages = {89--107},
     year = {1970},
     volume = {10},
     zbl = {0201.56104},
     url = {http://geodesic.mathdoc.fr/item/IM_1970__10_142024/}
}