@article{1077309722, author = {Braun, Louis J.}, title = {On the structure of fibrations}, journal = {Duke Math. J.}, volume = {40}, number = {1}, year = {1973}, pages = { 371-392}, language = {en}, url = {http://dml.mathdoc.fr/item/1077309722} }
Braun, Louis J. On the structure of fibrations. Duke Math. J., Tome 40 (1973) no. 1, pp. 371-392. http://gdmltest.u-ga.fr/item/1077309722/