TY - JOUR AU - Deitmar, Anton AU - Hoffman, Werner TI - Spectral Estimates for Towers of Noncompact Quotients JO - Canadian journal of mathematics PY - 1999 SP - 266 EP - 293 VL - 51 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1999-014-3/ DO - 10.4153/CJM-1999-014-3 ID - 10_4153_CJM_1999_014_3 ER -