with Hill, J. , 1999, Graphically representing causal sequences in accident scenarios: just some of the issues, in R. Paton & I. Neilson (eds.), Visual representations and interpretations, Dordrecht, Springer, pp. 76-87.
with Marsh, T. , 1999a, Articulation of spatial information: 3d shapes, in R. Paton & I. Neilson (eds.), Visual representations and interpretations, Dordrecht, Springer, pp. 253-262.