%0 Journal Article %A Frič, Roman %T Regularity and extension of mappings in sequential spaces %J Commentationes Mathematicae Universitatis Carolinae %D 1974 %P 161-171 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1974__15_1_a13/ %G en %F CMUC_1974__15_1_a13