%0 Journal Article %A Jerzy Jurkiewicz %T A remark on the orbit spaces under multiplicative group actions %J Colloquium Mathematicum %D 1987 %P 67-70 %V 54 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-54-1-67-70/ %R 10.4064/cm-54-1-67-70 %G en %F 10_4064_cm_54_1_67_70