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JUCS - Journal of Universal Computer Science 14(6): 908-937
doi: 10.3217/jucs-014-06-0908
Published: 28 Mar 2008
This article is part of:
JUCS - Journal of Universal Computer Science 14(6)
Authors
Fernando Ferreira - Corresponding author
Universidade de Lisboa, Lisboa, Portugal
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Gilda Ferreira
CMAF-Universidade de Lisboa, Lisboa, 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.
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