1. The intersection condition for regular polytopes
2. J. E. Humphreys, Reflection groups and Coxeter groups (Cambridge University Press, Cambridge, 1994), pp. 113–114.
3. The GAP Group, GAP – Groups, Algorithms and Programming, Version 4.11.1, https://www.gap-system.org/.
4. An Atlas of Small Regular Abstract Polytopes
5. P. McMullen and E. Schulte, Abstract Regular Polytopes (Cambridge University Press, New York, 2002), pp. 50–54.