1. Thermodynamics and Statistical Mechanics (Oxford University Press, Oxford, 1978), p. 366;
2. Phys. Lett. A (1984), in press.
3. in General Relativity: An Einstein Centenary Survey, and Eds. (Cambridge University Press, Cambridge, 1979).
4. Ed., The Enigma of Time (Adam Hilger, Bristol, 1982).
5. in The Logic of Personal Knowledge, essays presented to (Routledge and Kegan Paul, London, 1961).