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JUCS - Journal of Universal Computer Science 17(2): 183-202
doi:
10.3217/jucs-017-02-0183
Published:
28 Jan 2011
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Authors
Valeria Herskovic 
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Pontificia Universidad Católica de Chile, Santiago, Chile
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Universidad de Chile, Santiago, Chile
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DCC, Universidad de Chile, Santiago, Chile
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Pontificia Universidad Católica de Chile, Santiago de Chile, Chile
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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.