Edward G. Begle (1942). "Locally Connected Spaces and Generalized Manifolds". American Journal of Mathematics. 64 (1): 553–574. doi:10.2307/2371704. JSTOR2371704.
Edward G. Begle (1942). "Locally Connected Spaces and Generalized Manifolds". American Journal of Mathematics. 64 (1): 553–574. doi:10.2307/2371704. JSTOR2371704.