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JUCS - Journal of Universal Computer Science 19(11): 1597-1614
doi:
10.3217/jucs-019-11-1597
Received:
15 Dec 2012 | Approved:
28 May 2013 | Published:
01 Jun 2013
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Authors
Lucila Maria Costi Santarosa
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Universidade Federal do Rio Grande do Sul, Porto Alegre,
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Universidade Federal do Rio Grande do Sul, Porto Alegre,
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Universidade Federal do Rio Grande do Sul, Porto Alegre,
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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.