A projective homotopy theory of crossedG-modules. - Graham Ellis; Keith A. Hardie (Appl. Categorical Struct., 1995)

The Schur Multiplier of a Pair of Groups. - Graham Ellis (Appl. Categorical Struct., 1998)

On the Computation of Certain Homotopical Functors. - Graham Ellis (LMS J. Comput. Math., 1998)

Three-Dimensional Presentations for the Groups of Order at Most 30. - Graham Ellis; Irina Kholodna (LMS J. Comput. Math., 1999)

Computing group resolutions. - Graham Ellis (J. Symb. Comput., 2004)

Interoperating between computer algebra systems: computing homology of groups with kenzo and GAP. - Ana Romero 001; Graham Ellis; Julio Rubio 001 (ISSAC, 2009)

Computing group cohomology rings from the Lyndon-Hochschild-Serre spectral sequence. - Graham Ellis; Paul Smith (J. Symb. Comput., 2011)

Special issue on computer algebra in algebraic topology and its applications. - Graham Ellis; Eduardo Sáenz-de-Cabezón (Appl. Algebra Eng. Commun. Comput., 2012)

Computational homology of n-types. - Graham Ellis; Le Van Luyen (J. Symb. Comput., 2012)

Homotopy 2-Types of Low Order. - Graham Ellis; Le Van Luyen (Exp. Math., 2014)

Computing fundamental groups from point clouds. - Piotr Brendel; Pawel Dlotko; Graham Ellis; Mateusz Juda; Marian Mrozek (Appl. Algebra Eng. Commun. Comput., 2015)

Editorial. - Graham Ellis; Aniceto Murillo; Pedro Real 001; Eduardo Sáenz-de-Cabezón (Appl. Algebra Eng. Commun. Comput., 2015)

Cohomology with local coefficients and knotted manifolds. - Graham Ellis; Kelvin Killeen (J. Symb. Comput., 2021)