91

Guy B. Collier, G. B. M. Zerr, M. C. Stevens, Walter H. Drane, Elmer Schuyler, J. Scheffer, Cooper D. Schmitt, George Lilley
1900 The American mathematical monthly  
doi:10.2307/2971495 fatcat:dkxbuq6avvbwdk66bdkzssauy4