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@article{MZ_1963__81_170158, author = {Horst Dieter Ibisch}, title = {Homotopie-Theorie relativer {Faserungen.}}, journal = {Mathematische Zeitschrift}, pages = {355--376}, publisher = {mathdoc}, volume = {81}, year = {1963}, zbl = {0113.38302}, url = {http://geodesic.mathdoc.fr/item/MZ_1963__81_170158/} }
Horst Dieter Ibisch. Homotopie-Theorie relativer Faserungen.. Mathematische Zeitschrift, Tome 81 (1963), pp. 355-376. http://geodesic.mathdoc.fr/item/MZ_1963__81_170158/