eating Patterns in Chaos. M&T Books. N.Y. Sprott, J.C., Rowlands, G. (1991) Chaotic Data Analyzer. Am. Institute Physics. N.Y. Stam, C.J., Nicolai, J., Keunen, R.W. (1998) Nonlinear dynamical analysis of periodic lateralized epileptiform discharges Clin Electroencephalogr 29:101-105 Stanley, H.E. (1971):