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JUCS - Journal of Universal Computer Science 20(4): 561-582
doi: 10.3217/jucs-020-04-0561
Received: 30 Sep 2013 | Approved: 28 Jan 2013 | Published: 01 Apr 2014
This article is part of:
JUCS - Journal of Universal Computer Science 20(4)
Authors
Aad Slootmaker - Corresponding author
Open University of the Netherlands, Heerlen, Netherlands
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Hub Kurvers
Open University of the Netherlands, Heerlen, Netherlands
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Hans Hummel
Open University of the Netherlands, Heerlen, Netherlands
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Rob Koper
Open University of the Netherlands, Heerlen, Netherlands
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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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