1. Amidzic, O., Riehle, H. J., Fehr, T., Wienbruch, C., & Elbert, T. (2001). Pattern of focal y-bursts in chess players. Nature, 412, 603.
2. Anderson, D. L. (2001). Occam’s razor; simplicity, complexity, and global geodynamics. Proceedings of the American Philosophical Society, 14(1), 56–76.
3. Arthur, W. B. (1994). On the evolution of complexity. In G. Cowan, D. Pines, & D. Meltzer (Eds.), Complexity: Metaphors, models, and reality. Westview Press.
4. Avizienis, A. (1982). The four-universe information system model for the study of fault tolerance. In Proceedings of the 12th FTCS symposium (pp. 6–13). IEEE Press.
5. Bedau, M. A., & Humphrey, P. (2008). Emergence. MIT Press.