Geometry & Topology Volume 15, issue 3 (2011)

1	J A Behrstock, W D Neumann, Quasi-isometric classification of graph manifold groups, Duke Math. J. 141 (2008) 217 MR2376814
2	B H Bowditch, Cut points and canonical splittings of hyperbolic groups, Acta Math. 180 (1998) 145 MR1638764
3	M R Bridson, A Haefliger, Metric spaces of non-positive curvature, Grund. der Math. Wissenschaften 319, Springer (1999) MR1744486
4	C H Cashen, Quasi-isometries between tubular groups, Groups Geom. Dyn. 4 (2010) 473 MR2653972
5	C H Cashen, N Macura, Quasi-isometries of mapping tori of linearly growing free group automorphisms, in preparation
6	M J Dunwoody, The accessibility of finitely presented groups, Invent. Math. 81 (1985) 449 MR807066
7	M Gromov, Hyperbolic groups, from: "Essays in group theory" (editor S M Gersten), Math. Sci. Res. Inst. Publ. 8, Springer (1987) 75 MR919829
8	M Kapovich, Energy of harmonic functions and Gromov's proof of Stallings' theorem arXiv:0707.4231
9	S Lim, A Thomas, Covering theory for complexes of groups, J. Pure Appl. Algebra 212 (2008) 1632 MR2400734
10	R C Lyndon, P E Schupp, Combinatorial group theory, Classics in Math., Springer (2001) MR1812024
11	J F Manning, Virtually geometric words and Whitehead's algorithm, Math. Res. Lett. 17 (2010) 917 MR2727618
12	R Martin, Non-uniquely ergodic foliations of thin-type, measured currents and automorphisms of free groups, PhD thesis, University of California, Los Angeles (1995)
13	G A Niblo, A geometric proof of Stallings' theorem on groups with more than one end, Geom. Dedicata 105 (2004) 61 MR2057244
14	J Nielsen, Die Isomorphismengruppe der freien Gruppen, Math. Ann. 91 (1924) 169 MR1512188
15	J P Otal, Certaines relations d'équivalence sur l'ensemble des bouts d'un groupe libre, J. London Math. Soc. $(2)$ 46 (1992) 123 MR1180888
16	P Papasoglu, Quasi-isometry invariance of group splittings, Ann. of Math. $(2)$ 161 (2005) 759 MR2153400
17	M Sageev, Ends of group pairs and non-positively curved cube complexes, Proc. London Math. Soc. $(3)$ 71 (1995) 585 MR1347406
18	R E Schwartz, Symmetric patterns of geodesics and automorphisms of surface groups, Invent. Math. 128 (1997) 177 MR1437498
19	J R Stallings, Whitehead graphs on handlebodies, from: "Geometric group theory down under (Canberra, 1996)" (editors J Cossey, C F Miller III, W D Neumann, M Shapiro), de Gruyter (1999) 317 MR1714852
20	R Stong, Diskbusting elements of the free group, Math. Res. Lett. 4 (1997) 201 MR1453054
21	J H C Whitehead, On certain sets of elements in a free group, Proc. London Math. Soc. (2) 41 (1936) 48
22	J H C Whitehead, On equivalent sets of elements in a free group, Ann. of Math. $(2)$ 37 (1936) 782 MR1503309