Funding for this research was provided by:
Landwirtschaftliche Rentenbank (28RF4IP008)
ZIM (KF2248403 MD9)
Text and Data Mining valid from 2019-06-19
Received: 25 February 2019
Revised: 15 May 2019
Accepted: 11 June 2019
First Online: 19 June 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.