%0 Journal Article %A Cichoń, Mieczysław %A Kubiaczyk, Ireneusz %T Kneser-type theorem for the Darboux problem in Banach spaces %J Commentationes Mathematicae Universitatis Carolinae %D 2001 %P 267-279 %V 42 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2001__42_2_a4/ %G en %F CMUC_2001__42_2_a4