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2. B.B. Mandelbrot, The Fractal Geometry of Nature, Freeman, New York, 1982.
3. B.V. Gnedenko, A. Kolmogorov, Limit Distributions for Sums of Independent Random Variables, Addison Wesley, Cambridge, MA, 1954.
4. G. Samorodnitsky, M.S. Taqqu, Stable Non-Gaussian Random Processes: Stochastic Models with Infinite Variance, Chapman & Hall, New York, 1994.
5. U. Frish, M.F. Shlesinger, G. Zaslavasky, Lévy Flights and Related Phenomena in Physics, Springer, Berlin, 1994.