@article{GDZPPN00221749X, title = {The Etale Homotopy Theorie of a Geometric Fibration.}, journal = {Manuscripta mathematica}, volume = {11}, year = {1973}, pages = {209-244}, zbl = {0263.14004}, url = {http://dml.mathdoc.fr/item/GDZPPN00221749X} }
Friedlander, Eric M. The Etale Homotopy Theorie of a Geometric Fibration.. Manuscripta mathematica, Tome 11 (1973) pp. 209-244. http://gdmltest.u-ga.fr/item/GDZPPN00221749X/