Text and Data Mining valid from 2018-12-01
Received: 23 April 2018
Accepted: 27 November 2018
First Online: 6 December 2018
Ethics approval and consent to participate
: Ethics approval was obtained from the Research Data Centres at York University,
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.