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JUCS - Journal of Universal Computer Science 13(7): 980-990
doi:
10.3217/jucs-013-07-0980
Published:
28 Jul 2007
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Authors
Manuel Caeiro-Rodríguez
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University of Vigo, Spain
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University of Coimbra, Portugal
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University of Vigo, Spain
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Centro de Informática e Sistemas da Universidade de Coimbra, 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.