Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1979__167_172833, author = {Karel Ehrlich}, title = {Cross {Sections} in {Fibrations.}}, journal = {Mathematische Zeitschrift}, pages = {7--14}, publisher = {mathdoc}, volume = {167}, year = {1979}, zbl = {0388.55012}, url = {http://geodesic.mathdoc.fr/item/MZ_1979__167_172833/} }
Karel Ehrlich. Cross Sections in Fibrations.. Mathematische Zeitschrift, Tome 167 (1979), pp. 7-14. http://geodesic.mathdoc.fr/item/MZ_1979__167_172833/