Funding for this research was provided by:
European Research Council (Starting Grant No. 680014)
Fonds De La Recherche Scientifique - FNRS (Fresh scholarship)
Text and Data Mining valid from 2018-06-04
Received: 12 October 2017
Accepted: 16 February 2018
First Online: 4 June 2018
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.