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JUCS - Journal of Universal Computer Science 19(18): 2698-2721
doi:
10.3217/jucs-019-18-2698
Received:
05 Mar 2013 | Approved:
30 Oct 2013 | Published:
01 Dec 2013
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Authors
Katerina Kalyvioti
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The University of Ioannina, Ioannina, Greece
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The University of Ioannina, Ioannina, Greece
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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.