@article{GDZPPN002422360,
title = {Cross Sections in Fibrations.},
journal = {Mathematische Zeitschrift},
volume = {166},
year = {1979},
pages = {7-14},
zbl = {0388.55012},
url = {http://dml.mathdoc.fr/item/GDZPPN002422360}
}
Ehrlich, Karel. Cross Sections in Fibrations.. Mathematische Zeitschrift, Tome 166 (1979) pp. 7-14. http://gdmltest.u-ga.fr/item/GDZPPN002422360/