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JUCS - Journal of Universal Computer Science 15(8): 1735-1743
doi:
10.3217/jucs-015-08-1735
Published:
28 Apr 2009
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Author
Ulrica Pettersson
- Corresponding author
Swedish National Defence College, Stockholm, Sweden
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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.