Knots and surfaces. - N. D. Gilbert; Timothy Porter 001 (Oxford University Press, 1996)

Monoid Presentations and Associated Groupoids. - N. D. Gilbert (Int. J. Algebra Comput., 1998)

Flows on Regular Semigroups. - Nick D. Gilbert (Appl. Categorical Struct., 2003)

Finite Presentability of HNN Extensions of Inverse Semigroups. - Ersebet R. Dombi; Nick D. Gilbert; Nikola Ruskuc (Int. J. Algebra Comput., 2005)

Strongly F*-inverse covers for tiling semigroups. - Ersebet R. Dombi; Nick D. Gilbert (Period. Math. Hung., 2009)

The Idempotent Problem for an Inverse Monoid. - N. D. Gilbert; Rebecca Noonan Heale (Int. J. Algebra Comput., 2011)

Fibrations of Ordered Groupoids and the Factorization of Ordered Functors. - Nouf AlYamani; N. D. Gilbert; E. C. Miller (Appl. Categorical Struct., 2016)