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121Augustus J. Reef, M. A. Gruber, Alois F. Kovarik, Chas. C. Cross, Henry Heaton, Elmer Schuyler, J. D. Craig, J. Scheffer, P. S. Berg, Cooper D. Schmitt, Gaylor Cameron, W. H. Drane, J. W. Young and G. B. M. Zerr · The American Mathematical Monthly · 1899