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This paper was reprinted from 7th International Conference on Information Technology Based Higher Education and Training, pp. 296-309, and may be found http://dx.doi.org/10.1109/ITHET.2006.339778 access via this link is only available with a subscription. A full text version is available above.
Copyright (2006) IEEE
7th International Conference on Information Technology Based Higher Education and Training, ITHET, pp. 296-309