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JUCS - Journal of Universal Computer Science 3(5): 568-602
doi:
10.3217/jucs-003-05-0568
Published:
28 May 1997
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Author
Lourdes Araujo
- Corresponding author
Dpto. Informática y Automática, Fac. Matemáticas, Universidad Complutense de Madrid, Madrid, Spain
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Conflict of interest
The author has declared that no competing interests exist.
This article is freely available under the J.UCS Open Content License.