The Transitive Substitution-Groups of Nine Letters. F.N. Cole — 1893 Bulletin of the New York Mathematical Society
Note on the Substitution Groups of Six, Seven and Eight Letters. F.N. Cole — 1893 Bulletin of the New York Mathematical Society
Klein's Modular Functions / Felix Klein (Review). F.N. Cole Bulletin of the New York Mathematical Society
Note on Substitution Groups of Eight Letters. G.A. Miller; F.N. Cole Bulletin of the New York Mathematical Society