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JUCS - Journal of Universal Computer Science 8(3): 369-381
doi:
10.3217/jucs-008-03-0369
Published:
28 Mar 2002
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Authors
Fernando Arroyo 
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Dpto. de Lenguajes, Proyectos y Sistemas Informaticos, Escuela de Informática, Madrid, Spain
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Dpto. de Inteligencia Artificial Facultad de Informática, Madrid, Spain
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Dpto. de Inteligencia Artificial Facultad de Informática, Madrid, Spain
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Institute of Mathematics of the Romanian Academy, Bucharest, Romania
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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.