Funding for this research was provided by:
Federal State of Salzburg
Austrian Research Promotion Agency (865082)
Salzburg AG
Salzburg Netz GmbH
Verbund AG
Article History
Received: 7 June 2018
Accepted: 13 February 2019
First Online: 11 March 2019
Competing interests
: The authors declare that they have no competing interests.
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