%0 Journal Article %A Holá, Ľubica %T An extension theorem for multifunctions and a characterization of complete metric spaces %J Mathematica slovaca %D 1988 %P 177-182 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1988__38_2_a10/ %G en %F MASLO_1988__38_2_a10