Text and Data Mining valid from 2018-10-01
First Online: 10 October 2018
Change Date: 21 November 2018
Change Type: Erratum
Change Details: In the original publication of this article (Gritzbach et al., 2018), an incorrect version of Algorithm 1 was used. In this correction article the corrected version of Algorithm 1 is shown. The original publication of this article has been corrected.
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