Erratum
It has been brought to the Editor-in-Chief's attention that the author list of this article is incomplete as published eFirst on October 26, 2015. DOI of the original article is DOI: 10.1055/s-0035-1564926.
Author name Prof. Friedrich Wilhelm Mohr has been added. The correct list of authors is as above.
Editor-in-Chief
Markus K. Heinemann