Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1975__16_1_a11, author = {Moran, Daniel A.}, title = {Minimal cell coverings of sphere bundles over spheres}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {147--149}, publisher = {mathdoc}, volume = {16}, number = {1}, year = {1975}, mrnumber = {0365582}, zbl = {0309.55018}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1975__16_1_a11/} }
Moran, Daniel A. Minimal cell coverings of sphere bundles over spheres. Commentationes Mathematicae Universitatis Carolinae, Tome 16 (1975) no. 1, pp. 147-149. http://geodesic.mathdoc.fr/item/CMUC_1975__16_1_a11/