%0 Journal Article %A Prati, Nando %T Alternative set theory with elementary classes %J Commentationes Mathematicae Universitatis Carolinae %D 1994 %P 193-203 %V 35 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1994__35_1_a18/ %G en %F CMUC_1994__35_1_a18