, 2007, Mathematics, aesthetics and being human, in N. Sinclair, D. Pimm & W. Higginson (eds.), Mathematics and the aesthetic, Dordrecht, Springer, pp. 126-142.
with Sinclair, N. , Pimm, D. (eds) , 2007a, Mathematics and the aesthetic: new approaches to an ancient affinity, Springer, Dordrecht.