[1] Eric J. Chaisson (2001) Cosmic evolution: The rise of complexity in nature (Harvard University Press, Cambridge MA).
[2] Phil W. Anderson (1972) "More is different: Broken symmetry and the nature of the hierarchical structure of science", Science 177:4047, 393-396.
[3] Ian Stewart (2007) Why beauty is truth: A history of symmetry (Basic Books, NY).
[4] Burnham, K. P. and Anderson D. R. (2002) Model Selection and Multimodel Inference: A Practical Information-Theoretic Approach, Second Edition (Springer Science, New York).
[5] Phil C. Gregory (2005) Bayesian logical data analysis for the physical sciences: A comparative approach with Mathematica support (Cambridge U. Press, Cambridge UK).
[6] P. Fraundorf (2008) "The thermal roots of correlation-based complexity", Complexity 13:3, 16-26.
[7] James P. Sethna (2006) Entropy, order parameters and complexity (Oxford U. Press, Oxford UK).
[8] K. F. Kelton of Washington University in St. Louis, USA and A. L. Greer of University of Cambridge, UK (2010) Nucleation in Condensed Matter: Applications in Materials and Biology (Elsevier Science & Technology, Amsterdam)
[9] P. Fraundorf (1989) "A set of physical macroscopic observables for communities", Monsanto Science Library Reports MSL-8857 (Monsanto Information Services, Saint Louis MO) PDF.
[10] P. Fraundorf (2008) "A simplex model for layered niche-networks", Complexity 13:6, 29-39.
[11] P. Fraundorf (2013) "An order-parameter for communities", arXiv:1106.4698 [physics.gen-ph].
[12] Joel M. Hektner, Jennifer A. Schmidt, and M. Csikszentmihalyi (2007) Experience Sampling Method: Measuring the Quality of Everyday Life (Thousand Oaks: Sage Publishing).
[13] Lindsay E. Sears, Sangeeta Agrawal, James A. Sidney, Patricia H. Castle, Elizabeth Y. Rula, Dan Witters, James E. Pope and James K. Harter (2014) "The Well-Being 5: Development and validation of a diagnostic instrument to improve population well-being", Population Health Management 17(6): 357–365.