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JUCS - Journal of Universal Computer Science 15(1): 304-354
doi: 10.3217/jucs-015-01-0304
Published: 01 Jan 2009
This article is part of:
JUCS - Journal of Universal Computer Science 15(1)
Authors
Attila Sali - Corresponding author
Alfréd Rényi Institute of Mathematics, Budapest, Hungary
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Klaus-Dieter Schewe
Johannes Kepler University Linz, Linz, Austria
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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.
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