#### Volume 4, issue 1 (2000)

 1 M H Freedman, The disk theorem for four-dimensional manifolds, from: "Proceedings of the International Congress of Mathematicians, Vol. 1, 2 (Warsaw, 1983)", PWN (1984) 647 MR804721 2 M H Freedman, X S Lin, On the $(A,B)$–slice problem, Topology 28 (1989) 91 MR991101 3 M H Freedman, F Quinn, Topology of 4–manifolds, Princeton Mathematical Series 39, Princeton University Press (1990) MR1201584 4 M H Freedman, P Teichner, 4–manifold topology I: Subexponential groups, Invent. Math. 122 (1995) 509 MR1359602 5 R Kirby, A calculus for framed links in $S^3$, Invent. Math. 45 (1978) 35 MR0467753 6 V S Krushkal, On the relative slice problem and four-dimensional topological surgery, Math. Ann. 315 (1999) 363 MR1725988 7 V S Krushkal, F Quinn, Subexponential groups in 4–manifold topology, Geom. Topol. 4 (2000) 407 MR1796498 8 V S Krushkal, P Teichner, Alexander duality, gropes and link homotopy, Geom. Topol. 1 (1997) 51 MR1475554 9 J Milnor, Link groups, Ann. of Math. $(2)$ 59 (1954) 177 MR0071020