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JUCS - Journal of Universal Computer Science 18(2): 286-311
doi:
10.3217/jucs-018-02-0286
Received:
24 Mar 2011 | Approved:
16 Jan 2012 | Published:
28 Jan 2012
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Authors
Guillermo Vega-Gorgojo
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Universidad de Valladolid, Valladolid, Spain
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Universidad de Valladolid, Valladolid, Spain
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University of Valladolid, Valladolid, Spain
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University of Valladolid, Valladolid, Spain
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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.