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Published online by Cambridge University Press: 03 November 2016
Page 255 of note * Math. Gazette, XVIII (May 1934), p. 120.
Page 255 of note † Thébault, V., Education mathématique, XXXIV, p. 65.Google Scholar
Page 256 of note * Thébault, V., Education mathématique, XXXII, p. 57.Google Scholar