%0 Journal Article %A Močkoř, Jiří %T Extensional subobjects in categories of $\Omega$-fuzzy sets %J Czechoslovak Mathematical Journal %D 2007 %P 631-645 %V 57 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2007__57_2_a7/ %G en %F CMJ_2007__57_2_a7