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Nyikos, Peter J. (2001), "A history of the normal Moore space problem", Handbook of the History of General Topology, Hist. Topol., vol. 3, Dordrecht: Kluwer Academic Publishers, pp. 1179–1212, ISBN 978-0-7923-6970-7, MR 1900271 978-0-7923-6970-7
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