%0 Journal Article %A Humke, Paul D. %T Cluster sets of arbitrary functions defined on plane sets %J Czechoslovak Mathematical Journal %D 1976 %P 448-457 %V 26 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1976.101418/ %R 10.21136/CMJ.1976.101418 %G en %F 10_21136_CMJ_1976_101418