1. Islam, S. & Lindgren, K. Nature 322, 691–692 (1986).
2. Jeffreys, H. Theory of Probability (Clarendon, Oxford, 1939).
3. Jaynes, E. T. IEEE Trans. Systems Sci. Cybern. SSC-4, 227–241 (1968); Papers on Probability, Statistics and Statistical Physics 114–130 (Reidel, Dordrecht, 1983).
4. Edwards, A. W. F. Nature 324, 417–418 (1986).
5. Schwartz, J. Nature 324, 622 (1986).