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@article{MAN_1961__144_160899, author = {P.J. HUBER}, title = {Homotopy {Theory} in {General} {Categories.}}, journal = {Mathematische Annalen}, pages = {361--385}, publisher = {mathdoc}, volume = {144}, year = {1961}, zbl = {0099.17905}, url = {http://geodesic.mathdoc.fr/item/MAN_1961__144_160899/} }
P.J. HUBER. Homotopy Theory in General Categories.. Mathematische Annalen, Tome 144 (1961), pp. 361-385. http://geodesic.mathdoc.fr/item/MAN_1961__144_160899/