1. 1. F. Ancel and J. W. Cannon, Any embedding of S in S (n ≥ 5) can be approximated by locally flat embeddings, Notices Amer. Math. Soc. 23 (1976), p. A—308. Abstract #732-G2.
2. 2. J. Cannon, Taming codimension one generalized manifolds (preprint).
3. 3. R. D. Edwards, The double suspension of a certain homology 3-sphere is S5, Notices Amer. Math. Soc. 22 (1975), p. A-334. Abstract #75T-G33.
4. 4. R. D. Edwards, The double suspension of PL homology n-spheres, Proc. Topology Conf. (Georgia, 1975).
5. The relationship between homology and topological manifolds via homology transversality;Galewski, David E.;Invent. Math.,1977