On a problem raised by P.J. Cameron. - Richard P. Lewis 001; Simon P. Norton (Discret. Math., 1995)

Computing in the Monster. - Simon P. Norton (J. Symb. Comput., 2001)

A correction to the 41-structure of the Monster, a construction of a new maximal subgroup L2(41) and a new Moonshine phenomenon. - Simon P. Norton; Robert A. Wilson (J. Lond. Math. Soc., 2013)