1. Predicting complex systems with a holistic approach: The “throughput” criterion
2. National Science Foundation Strategic Plan, FY 2006–2011, URL as of 2/15/2007: http://www.nsf.gov/about/performance/nsfplandraft.pdf
3. (Ed.) Understanding Complex Systems; Springer-Verlag: Heidelberg, 2005.
4. Understanding Complex Systems, Annual Conference at the Department of Physics, University of Illinois at Urbana-Champaign, 1110 W Green Street, Urbana, Illinois, 61801. URL as of 2/15/2007: http://www.howhy.com/ucs
5. The Works of Plato, 3rd Ed.; Oxford University Press: Oxford, 1892; Theaetetus, p 152, c5–7.