1. On the triadic arrangements of seven and fifteen things;Cayley;Philos. Mag.,1850
2. Kirkman parades;Cole;Bull Am. Math. Soc.,1922
3. Some packings with Steiner triple systems;Denniston;Discrete Math.,1974
4. Note on Kirkman's problem;Dixon;Messenger of Math.,1893
5. Constructions of disjoint Steiner triple systems;Doyen;Proc. Am. Math. Soc.,1972