1. Abert M. , Gelander T. Nikolov N. , ‘Rank, combinatorial cost and homology torsion growth in higher rank lattices’, Preprint, 2015, http://arxiv.org/abs/1509.01711 .
2. The rank gradient from a combinatorial viewpoint;Abert;Groups Geom. Dyn.,2011
3. BOUNDED GENERATION AND LINEAR GROUPS
4. Rank gradient, cost of groups and the rank versus Heegaard genus problem
5. ON BOUNDED GENERATION OF SLn(Z)