1. Open problems in infinite-dimensional topology;Anderson,1974
2. Characterization of Hilbert space manifolds revisited;Bestvina;Topology Appl.,1986
3. The topology of discrete groups;Baumslag;J. Pure Appl. Algebra,1980
4. Dense sigma-compact subsets of infinite-dimensional manifolds;Chapman;Trans. Amer. Math. Soc.,1971
5. Boundary sets in the Hilbert cube;Curtis;Topology Appl.,1985