(With I. Leader and D. Strauss) Pairwise sums in colourings of the reals (to appear in Abh. Math. Sem. Univ. Hamburg)

Recent results on partition regularity of infinite matrices (to appear in Connections in Discrete Mathematics, Cambridge University Press)

(With D. Strauss) Infinite compact sets of idempotents in beta S (to appear in Semigroup Forum)

(With I. Leader and D. Strauss) Duality for image and kernel partition regularity of infinite matrices (to appear in Journal of Combinatorics)

(With D. Strauss and L. Zamboni) Recurrence in the dynamical system (X,(T_s)_{s in S}) and ideals of beta S (to appear in Indagationes Mathematicae)

(With D. Strauss) Long increasing chains of idempotents in beta G (to appear in Fund. Math.)

(With K. Pleasant) Preserving integer images of matrices (to appear in Integers)

A history of central sets

(With D. Strauss) Image partition regularity of matrices over commutative semigroups