Avoidance in triple systems. Griggs, T.S.; Rosa, A. — 1994 Acta Mathematica Universitatis Comenianae. New Series
Steiner triple systems and existentially closed graphs. Forbes, A.D.; Grannell, M.J.; Griggs, T.S. — 2005 The Electronic Journal of Combinatorics [electronic only]
On biembeddings of Latin squares. Grannell, M.J.; Griggs, T.S.; Knor, M. — 2009 The Electronic Journal of Combinatorics [electronic only]
Orientable self-embeddings of Steiner triple systems of order 15. Bennett, G.K.; Grannell, M.J.; Griggs, T.S. — 2006 Acta Mathematica Universitatis Comenianae. New Series
Non-orientable biembeddings of Steiner triple systems of order 15. Bennett, G.K.; Grannell, M.J.; Griggs, T.S. — 2004 Acta Mathematica Universitatis Comenianae. New Series