%0 Journal Article %A Jacek Klisowski %T A survey of various modifications of the notions of absolute retracts and absolute neighborhood retracts %J Colloquium Mathematicum %D 1982 %P 23-35 %V 46 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-46-1-23-35/ %R 10.4064/cm-46-1-23-35 %G en %F 10_4064_cm_46_1_23_35