1. The Abyss of Time;Albritton,1980
2. Aristotle, Posterior Analytics, Translated by G. R. G. Mure. http://classics.mit.edu/Aristotle/posterior.1.i.html.
3. Historical contingency and the evolution of a key innovation in an experimental population of Escherichia coli;Blount;Proceedings of the National Academy of Sciences USA,2008
4. Reduction in the Abstract Sciences;Bonevac,1982
5. The Pragmatics of Empirical Adequacy;Brown;Australasian Journal of Philosophy,2004