Funding for this research was provided by:
the German Federal Ministry of Education and Research (01KI1727F)
German Federal Ministry of Education and Research (01KI1725F, 01KI1727D, Grant ID 03ZZ0804B)
Federal Government Innovation Support by Landwirtschaftliche Rentenbank (grant 838 056)
Text and Data Mining valid from 2019-11-13
Received: 2 May 2019
Accepted: 9 September 2019
First Online: 13 November 2019
Ethics approval and consent to participate
: <b>Not applicable.</b>
: Not applicable.
: The authors declare that they have no competing interests.