%0 Journal Article %A T. Maćkowiak %A E. D. Tymchatyn %T Some properties of open and related mappings %J Colloquium Mathematicum %D 1984 %P 175-194 %V 49 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-49-2-175-194/ %R 10.4064/cm-49-2-175-194 %G en %F 10_4064_cm_49_2_175_194