%0 Journal Article %A Hajduk, Bogusław %A Walczak, Rafał %T Invariant metrics on $G$-spaces %J Czechoslovak Mathematical Journal %D 2003 %P 449-466 %V 53 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2003__53_2_a18/ %G en %F CMJ_2003__53_2_a18