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JUCS - Journal of Universal Computer Science 19(17): 2526-2542
doi:
10.3217/jucs-019-17-2526
Received:
15 Feb 2013 | Approved:
22 Apr 2013 | Published:
01 Nov 2013
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Authors
Constantin Taivan
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University of Minho, Guimarães, Portugal
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University of Minho, Guimarães, Portugal
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University of Minho, Guimarães, Portugal
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University of Lugano, Lugano, Switzerland
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Universidade Católica Portuguesa, Porto, 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.