TY - JOUR AU - Marcus du Sautoy AU - Fritz Grunewald TI - Analytic properties of zeta functions and subgroup growth JO - Annals of mathematics PY - 2000 VL - 152 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.2307/2661355/ DO - 10.2307/2661355 ID - 10_2307_2661355 ER -