Hafi, Nour
Grunwald, Matthias
van den Heuvel, Laura S
Aspelmeier, Timo
Steinem, Claudia
Korte, Martin
Munk, Axel
Walla, Peter J
Article History
First Online: 30 December 2015
Competing interests
: The University of Braunschweig, with which N.H., L.S.v.d.H., M.K. and P.J.W. are affiliated, has filed patents (US patent 14/362,346 and German patent 102011087770.3) for parts of this work.