Funding for this research was provided by:
Allianz Industrie Forschung (19180 N, 18479 N/1)
Text and Data Mining valid from 2019-09-10
Received: 27 March 2019
Accepted: 5 September 2019
First Online: 10 September 2019
Ethics approval and consent to participate
: Not applicable. The manuscript does not contain data collected from humans or animals.
: Not applicable. The manuscript does not contain any individual person’s data.
: The authors declare that they have no competing interests.