References Hyvarinen, A. and Oja, E. (2000), “Independent Component Analysis: Algorithms and Applications”, Neural Networks, 13(4-5):411-430 Hyvarinen, A., (2001), “Complexity pursuit: separating interesting components from time-series”, Neural Computation, 13(4):883–898. Klein, Lawrence R.and Andrei Roudoi, Vladimir Eskin, Lucian-Liviu Albu, Cristian Stanica, (2004a), “Quaterly GDP Data Correction Using Principal Components Analysis. The Case of the Romanian Economy – GDP Expenditures Side”, Romanian Journal of Economic Forecasting, Supplement. Klein, Lawrence R.and Andrei Roudoi, Vladimir Eskin, Lucian-Liviu Albu, Cristian Stanica, Mariana Nicolae, Mihaela Nona Chilian, (2004b), “Principal Components Model of the Romanian Economy GDP – Production Side”, Romanian Journal of Economic Forecasting, Supplemet Klein, Lawrence R. and Andrei Roudoi, Vladimir Eskin, Mariana Nicolae, (2004c), “Principal Components Model of the Romanian Economy. Study of the Oil Price Impact upon GDP” Romanian Journal of Economic Forecasting, Supplement Lopes, J. Carlos, Dias, J., Fereira do Amaral, J., (2007), “Economic complexity as Input-Output Interrelatedness: A Comparison of Different Measurement Methodes”, paper submitted at the: 16th International Input-Output Conference, Istambul, Turkey, 2-6 July 2007. Shnerb, N., Bettelheim, Y., Louzoum, Y., Agam, O., Solomon, S., (2001), “Adaptation of Autocatalytic Fluctuatios to Diffusive Noise”, Phys. Rev. E 63(2), http://xxx.lanl.gov.abs/cond-mat/007097 Solomon, S. (1998), “Stochastic Lotka Volterra Systems of Competing Auto-catalytic Agents lead Generically to Truncated Pareto Power Wealth Distribution of Market Returns, Clustered Volatility, Booms and Crashes”, Decision Technologies for Computational Finance, edited by A.-P. Refenes, A. N. Burgess and J. E. Moody (Kluver Academic Publishers. http://xxx.lanl.gov/abs/cond-mat/9803367 Stone, James V., (2004), “Independent Component Analysis. A tutorial Introduction“, The MIT Press Cambridge, Massachusetts, London, England. Yaari, G., (2006), “The AB Model, the GLV, and a Data set from Poland”, Presentation of the PhD thesis, under the supervision of Prof. Sorin Solomon, Racah Institute of Physics in the Hebrew University of Jerusalem, Israel; Multi-Agent Systems Division. ISI Torino, Italy.