1. N.L. Biggs, Presentations for cubic graphs, pp. 57–63. In Computational Group Theory, ed. M.D. Atkinson. Acad. Press, 1984.
2. M. Conder, A new 5-arc-transitive cubic graph, J. of Graph Theory, 11 (1987), 303–307.
3. A. Delgado, D.M. Goldschmidt & B. Stellmacher, Groups and Graphs: New Results and Methods. Birkhauser Verlag, Basel, 1985.
4. A. Delgado & R. Weiss, On certain coverings of generalized polygons. Bull. London Math. Soc. 21 (1989), 209 – 234.
5. D.Z. Djokovic, Automorphisms of regular graphs and finite simple group amalgams, pp. 95–118. In Algebraic Methods in Graph Theory, vol. 1, 1981, Amsterdam: North-Holland.