Adams operations and lambda-operations in beta-rings. - Ifor Morris; Christopher D. Wensley (Discret. Math., 1984)

Cycle indices and subgroup lattices. - Ifor Morris; Christopher D. Wensley (Discret. Math., 1993)

Enumeration by Stabilizer Class of Patterns with Local Restrictions. - Ifor Morris; Christopher D. Wensley (Electron. J. Comb., 1996)

Graphs of Morphisms of Graphs. - Ronald Brown; Ifor Morris; J. Shrimpton; Christopher D. Wensley (Electron. J. Comb., 2008)