1. Doornik, J.A. (2000). Multimodality and the GARCH likelihood. A Paper Presented at The World Conference of Econometric Society.
2. Holland, J. (1992). Adaptation in Natural and Artificial Systems, 2nd edition. MIT Press.
3. Houck, C., Joines, J. and Kay, M. (1996). A Genetic Algorithm for Function Optimization: A Matlab Implementation. ACM Transactions on Mathematical Software.
4. Jerrel, M. (2000). Applications of Public Domain Global Optimization Software to Difficult Econometric Functions. Computing in Economics and Finance, No. 161.
5. Lagarias, J.C., Reeds, J.A., Wright, M.H. and Wright, P.E. (1998). Convergence Properties of the Nelder-Mead Simplex Method in Low Dimensions. SIAM Journal of Optimization, 9(1), 112–147.