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JUCS - Journal of Universal Computer Science 14(17): 2859-2876
doi: 10.3217/jucs-014-17-2859
Published: 28 Sep 2008
This article is part of:
JUCS - Journal of Universal Computer Science 14(17)
Authors
Jesus G. Boticario - Corresponding author
aDeNu Research Group, Madrid, Spain
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Olga C. Santos
aDeNu Research Group, Madrid, Spain
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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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