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JUCS - Journal of Universal Computer Science 18(7): 937-969
doi:
10.3217/jucs-018-07-0937
Received:
11 Nov 2011 | Approved:
27 Mar 2012 | Published:
01 Apr 2012
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Authors
Maurizio Palesi
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Kore University, Enna, Italy
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Universidad de Valencia, Valencia, Spain
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Universidad de Valencia, Valencia, Spain
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University of Catania, Catania, Italy
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University of Catania, Catania, Italy
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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.