#### Volume 12, issue 2 (2008)

 1 A Hatcher, K Vogtmann, Cerf theory for graphs, J. London Math. Soc. $(2)$ 58 (1998) 633 MR1678155 2 A Hatcher, K Vogtmann, Homology stability for outer automorphism groups of free groups, Algebr. Geom. Topol. 4 (2004) 1253 MR2113904 3 A Hatcher, K Vogtmann, N Wahl, Erratum to: “Homology stability for outer automorphism groups of free groups [Algebr. Geom. Topol. \bf4 (2004), 1253–1272 ] by Hatcher and Vogtmann, Algebr. Geom. Topol. 6 (2006) 573 MR2220689 4 A Hatcher, N Wahl, Stabilization for mapping class groups of 3–manifolds arXiv:0709.2173v1 5 A Hatcher, N Wahl, Stabilization for the automorphisms of free groups with boundaries, Geom. Topol. 9 (2005) 1295 MR2174267