@article{GDZPPN002053349,
title = {Zur Homotopietheorie gefaserter R\"aume.},
journal = {Commentarii mathematici Helvetici},
volume = {14},
year = {1941},
pages = {141-192},
zbl = {0026.09302},
url = {http://dml.mathdoc.fr/item/GDZPPN002053349}
}
Eckmann, Beno. Zur Homotopietheorie gefaserter Räume.. Commentarii mathematici Helvetici, Tome 14 (1941) pp. 141-192. http://gdmltest.u-ga.fr/item/GDZPPN002053349/