%0 Journal Article %A Dung, Nguyen Xuang %T On decidability of skeletal sets [Abstract of thesis] %J Commentationes Mathematicae Universitatis Carolinae %D 1990 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1990__31_1_a25/ %G en %F CMUC_1990__31_1_a25