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Published online by Cambridge University Press: 03 November 2016
page note 144 * Neuberg, J., The Tohoku Mathematical Journal, 1914, p. 103.Google Scholar
page note 144 † Cfr.Court, N. A., Modern Pure Solid Geometry (Macmillan, 1935), p. 250.Google Scholar
page note 144 ‡ Nouvelles Annales de Mathématiques, 1865, p. 322.