1. B ourbaki N. 1968 Groupesel algebresde
2. A group of order 8,315,553,613,086,720,000. B ull. Lond. math;Conway J .;Soc.,1969
3. Conway J . H . 19696 A c h a ra c terisa tio n of L eech's lattice. Invent math. 7 137-142.
4. Conway J . H . 1971 T hree lectures on exceptional groups. In F in ite sim ple groups (ed. M. B. Powell & G. H igm an) pp. 215-247. New Y ork: Academ ic Press.
5. Conway J . H . 1977 T he m iracle octad generator. In Topics in group theory and computation (ed. M. P. J . C urran) pp. 62-68. New Y o rk : Academ ic Press.