%0 Journal Article %A Nosálová, A. %T Abstract analysis of Korovkin approximation theory [Abstract of thesis] %J Commentationes Mathematicae Universitatis Carolinae %D 1989 %P 194-195 %V 30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1989__30_1_a26/ %G en %F CMUC_1989__30_1_a26