@article{GDZPPN002289792,
title = {Homotopy Theory in General Categories.},
journal = {Mathematische Annalen},
volume = {142},
year = {1961},
pages = {361-385},
zbl = {0099.17905},
url = {http://dml.mathdoc.fr/item/GDZPPN002289792}
}
HUBER, P.J. Homotopy Theory in General Categories.. Mathematische Annalen, Tome 142 (1961) pp. 361-385. http://gdmltest.u-ga.fr/item/GDZPPN002289792/