%0 Journal Article %A Gordon Whyburn %T On convergence of mappings %J Colloquium Mathematicum %D 1958 %P 311-318 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-6-1-311-318/ %R 10.4064/cm-6-1-311-318 %G en %F 10_4064_cm_6_1_311_318