1. Z-compactifications of open manifolds;Ancel;Topology,1999
2. Metric Spaces of Non-Positive Curvature;Bridson,1999
3. Finding a boundary for a Hilbert cube manifold;Chapman;Topology,1965
4. Topology of 4-Manifolds;Freedman,1990
5. Manifolds with non-stable fundamental groups at infinity;Guilbault;Geom. Topol.,2000