TY - JOUR AU - Dennis Gaitsgory AU - David Nadler TI - Hecke operators on quasimaps into horospherical varieties JO - Documenta mathematica PY - 2009 SP - 19 EP - 46 VL - 14 UR - http://geodesic.mathdoc.fr/articles/10.4171/dm/264/ DO - 10.4171/dm/264 ID - 10_4171_dm_264 ER -