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JUCS - Journal of Universal Computer Science 16(13): 1745-1760
doi:
10.3217/jucs-016-13-1745
Published:
01 Jul 2010
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Author
Jason J. Jung 
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Yeungnam University, Gyeongsan, Republic of Korea
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Conflict of interest
The author has declared that no competing interests exist.
This article is freely available under the J.UCS Open Content License.