TY - JOUR AU - Hejhal, Dennis A. AU - Rackner, Barry N. TI - On the topography of Maass waveforms for . JO - Experimental mathematics PY - 1992 SP - 275 EP - 305 VL - 1 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EXMA_1992__1_4_231520/ LA - en ID - EXMA_1992__1_4_231520 ER -