International Congress of Mathematicians

384 Mladen Bestvina63 John R. Stallings, Topology of finite graphs, Invent. Math. 71 (1983), no. 3,551-565., Finite graphs and free groups, Combinatorial methods in topology andalgebraic geometry (Rochester, N.Y., 1982), Amer. Math. Soc, Providence, RI,1985, 79-84.John R. Stallings and A. Royce Wolf, The Todd-Coxeter process, using graphs,Combinatorial group theory and topology (Alta, Utah, 1984), Princeton Univ.Press, Princeton, NJ, 1987, 157-161.Michael Steiner, Gluing data and group actions on "R-trees, Thesis, ColumbiaUniversity, 1988.Edward C. Turner, Finding indivisible Nielsen paths for a train track map,Combinatorial and geometric group theory (Edinburgh, 1993), CambridgeUniv. Press, Cambridge, 1995, 300-313.Enric Ventura, On fixed subgroups of maximal rank, Comm. Algebra 25 (1997),no. 10, 3361-3375.Karen Vogtmann, Automorphisms of free groups and Outer space, to appear., Local structure of some Out(F n )-complexes, Proc. Edinburgh Math.Soc. (2) 33 (1990), no. 3, 367-379.[71] Tad White, Fixed points of finite groups of free group automorphisms, Proc.Amer. Math. Soc. 118 (1993), no. 3, 681-688.