1. Aliev, R.A., Fazlollahi, B., Aliev, R.R.: Soft Computing and Its Applications in Business and Economics, p. 450. Springer, Heidelberg (2004)
2. Aliev, R.A., Fazlollahi, B., Vahidov, R.: Genetic Algorithm-Based Learning of Fuzzy Neural Networks. Part 1: Feed-Forward Fuzzy Neural Networks, Fuzzy Sets and Systems 118, 351–358 (2001)
3. Aliev, R.A., Guirimov, B.G., Fazlollahi, B., Aliev, R.R.: Genetic Algorithm-Based Learning of Fuzzy Neural Networks. Part 2: Recurrent Fuzzy Neural Networks (submitted to Fuzzy Sets and Systems, 2006)
4. Castillo, O., Melin, P.: A New-Fractal Approach for Forecasting Financial and Economic Time Series. J. IEEE, pp. 929–934 (2001)
5. Chen, S.M.: Forecasting Enrolments based on fuzzy time series. Fuzzy Sets and Systems 81, 311–319 (1996)