%0 Journal Article %A Sochor, Antonín %A Vopěnka, Petr %T Constructions of classes by transfinite induction in AST %J Commentationes Mathematicae Universitatis Carolinae %D 1989 %P 155-161 %V 30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1989__30_1_a18/ %G en %F CMUC_1989__30_1_a18