%0 Journal Article %A Kenzi Satô %T A free group acting without fixed points on the rational unit sphere %J Fundamenta Mathematicae %D 1995 %P 63-69 %V 148 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-148-1-63-69/ %R 10.4064/fm-148-1-63-69 %G en %F 10_4064_fm_148_1_63_69