%0 Journal Article %A Schwarz, Friedhelm %A Weck-Schwarz, Sibylle %T On hereditary and product-stable quotient maps %J Commentationes Mathematicae Universitatis Carolinae %D 1992 %P 345-352 %V 33 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1992__33_2_a15/ %G en %F CMUC_1992__33_2_a15