TY - JOUR AU - Hanlon, Richard Gaelan AU - Martínez-Pedroza, Eduardo TI - Lifting group actions, equivariant towers and subgroups of non-positively curved groups JO - Algebraic and Geometric Topology PY - 2014 SP - 2783 EP - 2808 VL - 14 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2014.14.2783/ DO - 10.2140/agt.2014.14.2783 ID - 10_2140_agt_2014_14_2783 ER -