%0 Journal Article %A Winkelmann, Jörg %T How frequent are discrete cyclic subgroups of semisimple Lie groups? %J Documenta mathematica %D 2001 %P 29-35 %V 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_2001__6__a19/ %G en %F DOCMA_2001__6__a19