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JUCS - Journal of Universal Computer Science 15(9): 1991-2010
doi:
10.3217/jucs-015-09-1991
Published:
01 May 2009
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Authors
Emerson Cabrera Paraiso
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Pontifical Catholic University of ParanĂ¡, Curitiba, Brazil
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ParanĂ¡ Federal University of Technology (UTFPR), Curitiba, 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.