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JUCS - Journal of Universal Computer Science 5(9): 542-551
doi:
10.3217/jucs-005-09-0542
Published:
28 Sep 1999
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Author
Padmanabhan Krishnan 
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Department of Computer Science, University of Canterbury, New Zealand
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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.