%0 Journal Article %A Banaś, Józef %A Rivero, Jesus %T Remarks concerning J. Witte's theorem and its applications %J Commentationes Mathematicae Universitatis Carolinae %D 1987 %P 23-31 %V 28 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1987__28_1_a3/ %G en %F CMUC_1987__28_1_a3