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JUCS - Journal of Universal Computer Science 17(1): 151-161
doi:
10.3217/jucs-017-01-0151
Published:
01 Jan 2011
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Author
Rafael Dueire Lins
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Federal University of Pernambuco, Recife, Brazil
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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.