1. 1. J. W. Alexander, On the deformation of an n-cell, Proc. Nat. Acad. Sci. vol. 9 (1923) pp. 406-407.
2. Regular mappings and the space of homeomorphisms on a 2-manifold;Hamstrom, Mary-Elizabeth;Duke Math. J.,1958
3. A proof that the group of all homeomorphisms of the plane onto itself is locally arcwise connected;Fort, M. K., Jr.;Proc. Amer. Math. Soc.,1950
4. Die Deformationssätze der einfach zusammenhängenden Flächen;Kneser, Hellmuth;Math. Z.,1926
5. 5. J. H. Roberts, Local arcwise connectivity in the space H, Summary of Lectures, Summer Institute on Set Theoretic Topology, Madison, Wisconsin, 1955, p. 100.