%0 Journal Article %A G. A. Margulis %A E. B. Vinberg %T Some Linear Groups Virtually Having a Free Quotient %J Journal of Lie theory %D 2000 %P 171-18 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_2000_10_1_a10/ %F JLT_2000_10_1_a10