%0 Journal Article %A Duda, Roman %A Telgársky, Rastislav %T On some covering properties of metric spaces %J Czechoslovak Mathematical Journal %D 1968 %P 66-82 %V 18 %N 1 %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1968.100812/ %R 10.21136/CMJ.1968.100812 %G en %F 10_21136_CMJ_1968_100812