Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (414/15-1, DFG JU)
Text and Data Mining valid from 2019-07-12
Received: 1 February 2018
Accepted: 3 July 2019
First Online: 12 July 2019
: The authors declare that they have no significant competing financial, professional, or personal interests that might have influenced the performance or presentation of the work described in this article.