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Translated from Matematicheskie Zametki, Vol. 27, No. 1, pp. 95–104, January, 1980.
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Arkhangel'skii, A.V. Some properties of radial spaces. Mathematical Notes of the Academy of Sciences of the USSR 27, 50–54 (1980). https://doi.org/10.1007/BF01149814
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DOI: https://doi.org/10.1007/BF01149814