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JUCS - Journal of Universal Computer Science 22(2): 271-297
doi:
10.3217/jucs-022-02-0271
Received:
02 Jan 2014 | Approved:
29 Jan 2016 | Published:
01 Jan 2016
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Authors
INESC TEC - INESC Technology & Science, Porto, Portugal
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INESC TEC and Universidade de TrĂ¡s-os-Montes e Alto Douro, Porto, Portugal
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UTAD - Universidade de Tres-os-Montes e Alto Douro, Vila Real, Portugal
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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.