%0 Journal Article %A W. Kulpa %T On a generalization of Dugundji extension theorem %J Colloquium Mathematicum %D 1975 %P 219-222 %V 34 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-34-2-219-222/ %R 10.4064/cm-34-2-219-222 %G en %F 10_4064_cm_34_2_219_222