The Haemers partial geometry and the Steiner system S(5, 8, 24). - A. Robert Calderbank; David B. Wales (Discret. Math., 1984)

A poset connected to Artin monoids of simply laced type. - Arjeh M. Cohen; Dié A. H. Gijsbers; David B. Wales (J. Comb. Theory A, 2006)

Eigenvalues of the derangement graph. - Cheng Yeaw Ku; David B. Wales (J. Comb. Theory A, 2010)