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JUCS - Journal of Universal Computer Science 20(13): 1712-1737
doi:
10.3217/jucs-020-13-1712
Received:
20 Jan 2014 | Approved:
06 Sep 2014 | Published:
28 Nov 2014
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Authors
Nelson Baloian 
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Universidad de Chile, Santiago, Chile
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University of Chile, Santiago de Chile, Chile
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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.