Brody, D C and Hughston, L P. 2005. Twistor Cosmology and Quantum Space-Time. In: J Lukierski and D Sorokin, eds. Fundamental interactions and twistor-like methods: XIX Max Born Symposium. 767 (1) Melville, NY: American Institute of Physics, pp. 57-95. ISBN 0735402523 [Book Section]