TY - JOUR AU - Eskin, Alex TI - Counting problems and semisimple groups JO - Documenta mathematica PY - 1998 SP - 539 EP - 552 VL - ICM Berlin 1998, Vol. II PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DOCMA_1998__S8__a30/ LA - en ID - DOCMA_1998__S8__a30 ER -