Hoffmann, Markus http://orcid.org/0000-0001-8055-6727
Zimmermann, Bernd http://orcid.org/0000-0002-5823-3208
Müller, Gideon P. http://orcid.org/0000-0001-8684-9627
Schürhoff, Daniel
Kiselev, Nikolai S. http://orcid.org/0000-0002-7423-0840
Melcher, Christof
Blügel, Stefan http://orcid.org/0000-0001-9987-4733
Article History
Received: 19 January 2017
Accepted: 15 June 2017
First Online: 21 August 2017
Competing interests
: The authors declare no competing financial interests.