James P. Crutchfield, J. Doyne Farmer, et al., "Chaos," Scientific American 225(December 1986); James Gleick, Chaos: Making a New Science (New York: Penguin Books, 1987); Joseph Ford, "What is Chaos, That We Should Be Mindful of It?" in The New Physics, ed. Paul Davies (New York: Cambridge University Press, 1989); John C. Polkinghorne, "The Nature of Physical Reality," Zygon: Journal of Religion and Science 26.2(June 1991). See Wesley J. Wildman and Robert J. Russell, "Chaos: A Mathematical Introduction with Philosophical Reflections," in Chaos and Complexity: Scientific Perspectives on Divine Action, ed. Robert J. Russell, Nancey C. Murphy and Arthur R. Peacocke, Scientific Perspectives on Divine Action Series (Vatican City State; Berkeley, Calif.: Vatican Observatory Publications; Center for Theology and the Natural Sciences, 1995), 49-92. for extended references.