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. 2012 Jun 20;7(6):e38869. doi: 10.1371/journal.pone.0038869

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Yasseri et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Each sample contains 20 articles and the average for all articles is about 10 hours. Circles are empirical data and solid lines are model fit, with values , and , respectively for disputed and non-disputed samples. The dashed line in the left panel is the power law with exponent .

Inline graphic — Each sample contains 20 articles and the average for all articles is about 10 hours. Circles are empirical data and solid lines are model fit, with values , and , respectively for disputed and non-disputed samples. The dashed line in the left panel is the power law with exponent .