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This paper was reprinted from Proceedings of the 6th World Congress on Intelligent Control and Automation (WCICA 2006) pp. 2494-2497, and may be found http://dx.doi.org/10.1109/WCICA.2006.1712810 access via this link is only available with a subscription. A full text version is available above.
Copyright (2006) IEEE
Proceedings of the 6th World Congress on Intelligent Control and Automation (WCICA 2006), pp. 2494-2497