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JUCS - Journal of Universal Computer Science 15(11): 2254-2283
doi:
10.3217/jucs-015-11-2254
Published:
01 Jun 2009
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Authors
Camila Nunes
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Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil
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UFRN - Federal University of Rio Grande do Norte, Natal, Brazil
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Federal University of Bahia, Brazil
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Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil
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Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil
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Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil
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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.