1. Infinite sums of manifolds;Curtis;Topology,1965
2. A contractible, nowhere locally connected compactum;Edwards;Abstr. Am. Math. Soc.,1999
3. Uncountably many contractible open 4-manifolds;Glaser;Topology,1967
4. Algebraic Topology;Hatcher,2002
5. Some contractible open 3-manifolds;McMillan;Trans. Am. Math. Soc.,1962