%0 Journal Article
%A Miklós Abért
%A Andrei Jaikin-Zapirain
%A Nikolay Nikolov
%T The rank gradient from a combinatorial viewpoint
%J Groups, geometry, and dynamics
%D 2011
%P 213-230
%V 5
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4171/ggd/124/
%R 10.4171/ggd/124
%F 10_4171_ggd_124