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JUCS - Journal of Universal Computer Science 11(7): 1159-1176
doi:
10.3217/jucs-011-07-1159
Published:
28 Jul 2005
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Authors
Roberto Ierusalimschy 
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PUC-Rio, Rio de Janeiro, Brazil
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The Institute of Pure and Applied Mathematics (IMPA), Rio de Janeiro, Brazil
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Department of Computer Science, PUC-Rio, Brazil
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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.