1. On the diameter of permutation groups,;L. Babai;European J. Combin.,1992
2. Approximate groups II : The solvable linear case,;E. Breuillard;preprint
3. Approximate subgroups of linear groups,;E. Breuillard;preprint. \arXiv{1005.1881}
4. Expansion in simple groups of Lie type,;E. Breuillard;preprint.
5. Uniform expansion bounds for Cayley graphs of $SL_2(F_p)$,;J. Bourgain;Ann. of Math. (2),2008