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JUCS - Journal of Universal Computer Science 7(11): 952-979
doi:
10.3217/jucs-007-11-0952
Published:
28 Nov 2001
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Author
Gerhard Schellhorn
- Corresponding author
University of Augsburg, Germany
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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.