%0 Journal Article %A Skiba, Robert %T Topological essentiality for multivalued weighted mappings %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 2002 %P 131-145 %V 41 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_2002__41_1_a12/ %G en %F AUPO_2002__41_1_a12