@article{MAN_1976__222_162858,
     author = {Wolfgang Henke},
     title = {\"Uber die {Existenz} isometrischer {Immersionen} der {Kodimension} 2 von  sph\"arischen {Raumformen} in {Standard-R\"aume.}},
     journal = {Mathematische Annalen},
     pages = {89--96},
     publisher = {mathdoc},
     volume = {222},
     year = {1976},
     zbl = {0313.53023},
     url = {http://geodesic.mathdoc.fr/item/MAN_1976__222_162858/}
}