Bindel, Jan Raphael
Pezzotta, Mike
Ulrich, Jascha
Liebmann, Marcus
Sherman, Eugene Ya.
Morgenstern, Markus
Article History
Received: 15 February 2016
Accepted: 21 April 2016
First Online: 16 May 2016
Change Date: 7 September 2016
Change Type: Corrigendum
Change Details: The original version of this Letter mistakenly neglected to acknowledge the support of the National Science Center in Poland to Eugene Ya. Sherman (research project no. DEC-2012/06/M/ST3/00042). The Acknowledgements have been updated accordingly in all versions of the Letter.
Competing interests
: The authors declare no competing financial interests.