Funding for this research was provided by:
Landwirtschaftliche Rentenbank (740714)
Klaus Murmann Fellowship Program of the Foundation of German Business
Program of Open Access Publishing of German Research Foundation (DFG) and Leipzig University (IN-1260910)
Text and Data Mining valid from 2018-08-31
Received: 27 March 2018
Accepted: 17 August 2018
First Online: 31 August 2018
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