@article{GDZPPN002425106, title = {Spherical Fibrations and Manifolds.}, journal = {Mathematische Zeitschrift}, volume = {177}, year = {1981}, pages = {187-192}, zbl = {0437.55006}, url = {http://dml.mathdoc.fr/item/GDZPPN002425106} }
Wissemann-Hartmann, Cornelia. Spherical Fibrations and Manifolds.. Mathematische Zeitschrift, Tome 177 (1981) pp. 187-192. http://gdmltest.u-ga.fr/item/GDZPPN002425106/