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JUCS - Journal of Universal Computer Science 21(2): 223-247
doi:
10.3217/jucs-021-02-0223
Received:
10 Jun 2014 | Approved:
08 Jan 2015 | Published:
01 Feb 2015
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Authors
Marcelo G. Manzato 
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Sao Paulo University (ICMC-USP), Sao Carlos, Brazil
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Sao Paulo University (ICMC-USP), Sao Carlos, Brazil
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Sao Paulo University (ICMC-USP), Sao Carlos, 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.