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JUCS - Journal of Universal Computer Science 15(12): 2373-2386
doi:
10.3217/jucs-015-12-2373
Published:
28 Jun 2009
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Authors
Hai-Cheng Chu
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Tunghai University, Taichung, Taiwan
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National Changhua University of Education, Changhua, Taiwan
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National Dong Hwa University, Hualien, Taiwan
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National Cheng Kung University, Taiwan
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Conflict of interest
The authors have declared that no competing interests exist.
This article is freely available under the J.UCS Open Content License.