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JUCS - Journal of Universal Computer Science 17(3): 472-497
doi:
10.3217/jucs-017-03-0472
Published:
01 Feb 2011
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Authors
Mikko Pohjola
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National Institute for Health and Welfare, Kuopio, Finland
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National Institute for Health and Welfare, Helsinki, Finland
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University of Helsinki, Helsinki, Finland
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Helsinki Metropolia University of Applied Sciences, Helsinki, Finland
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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.