TY - JOUR AU - Stephen J. Pride TI - Universal diagram groups with identical Poincaré series JO - Groups, geometry, and dynamics PY - 2010 SP - 901 EP - 908 VL - 4 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4171/ggd/113/ DO - 10.4171/ggd/113 ID - 10_4171_ggd_113 ER -