1. [1] G. Bishop, S. Basu, E. Holland, and J. Secan. Impacts of ionospheric fading on GPS navigatioon integrity. In Proc. ION GPS94, pages 577-585, 1994.
2. [2] J. R. I. Christie, P-Y. Ko, B. S. Pervan, P. K. Enge, J. D. Powell, and B. W. Parkinson. Analytical and experimental observations of ionospheric and tropospheric decorrelation effect for differential satellite navigation during precision approach. In Proc. ION GPS98, pages 739-747, 1998.
3. [3] P. S. Churchland and T. J. Sejnowski. The Computational Brain, The MIT Press, 1992.
4. [4] J. D. Cowan. A statistical mechanics of nervous activity. In Lectures on Mathematics in the Life Sciences, Vol. 2. American Mathematical Society, 1970.
5. [5] B. I. Epureanu and H. S. Greenside. Fractal basins of attraction associated with a damped Newton's method. SIAM Review, 40:102-109, 1998.