2Mandelbrot. Statistical Methodology of Non - periodic Cycles: From the Covariance to R/S analysis[J]. Annals of Economic and Social Measurement, 1972, (1).
3Mulligan, Robert F. Fractal analysis of highly volatile markets: an application to technology equities[J]. The Quarterly Review of Economics and Finance, 2004, ( 1 ).
4Peters.Fractal Structure in the Capital Markets[J]. Financial Analysts Journal, 1989, (4).
