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JUCS - Journal of Universal Computer Science 15(4): 722-741
doi: 10.3217/jucs-015-04-0722
Published: 28 Feb 2009
This article is part of:
JUCS - Journal of Universal Computer Science 15(4)
Authors
Xuesong Wang - Corresponding author
China University of Mining and Technology, Xuzhou, China
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Minglin Hao
China University of Mining and Technology, Xuzhou, China
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Yuhu Cheng
China University of Mining and Technology, Xuzhou, China
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Ruhai Lei
China University of Mining and Technology, Xuzhou, China
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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.
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