Kokorsch, Matthias
Benediktsson, Karl
Funding for this research was provided by:
Icelandic Centre for Research (152268-051)
Article History
Received: 4 July 2017
Accepted: 21 November 2017
First Online: 22 May 2018
Competing interests
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.