Certificates of factorisation for chromatic polynomials. Morgan, Kerri; Farr, Graham — 2009 The Electronic Journal of Combinatorics [electronic only]
Certificates of factorisation for a class of triangle-free graphs. Morgan, Kerri; Farr, Graham — 2009 The Electronic Journal of Combinatorics [electronic only]
Approximation algorithms for the maximum induced planar and outerplanar subgraph problems. Morgan, Kerri; Farr, Graham — 2007 Journal of Graph Algorithms and Applications