TY - JOUR AU - W. Duke TI - Hyperbolic distribution problems and half-integral weigth Maass forms. JO - Inventiones mathematicae PY - 1988 SP - 73 EP - 90 VL - 92 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1988__92_1_143559/ ID - IM_1988__92_1_143559 ER -