@article{MZ_1981__177_173055,
     author = {Cornelia Wissemann-Hartmann},
     title = {Spherical {Fibrations} and {Manifolds.}},
     journal = {Mathematische Zeitschrift},
     pages = {187--192},
     publisher = {mathdoc},
     volume = {177},
     year = {1981},
     zbl = {0437.55006},
     url = {http://geodesic.mathdoc.fr/item/MZ_1981__177_173055/}
}