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JUCS - Journal of Universal Computer Science 11(12): 2063-2075
doi:
10.3217/jucs-011-12-2063
Published:
28 Dec 2005
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Author
Klaus-Dieter Schewe 
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Department of Information Systems and Information Science, Research Centre, Massey University, Palmerston North, 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.