@article{GDZPPN002392968, title = {Homotopie-Theorie relativer Faserungen.}, journal = {Mathematische Zeitschrift}, volume = {82}, year = {1963}, pages = {355-376}, zbl = {0113.38302}, url = {http://dml.mathdoc.fr/item/GDZPPN002392968} }
Ibisch, Horst Dieter. Homotopie-Theorie relativer Faserungen.. Mathematische Zeitschrift, Tome 82 (1963) pp. 355-376. http://gdmltest.u-ga.fr/item/GDZPPN002392968/