Heinrich, Matthias
Miri, Mohammad-Ali
Stützer, Simon
El-Ganainy, Ramy
Nolte, Stefan
Szameit, Alexander
Christodoulides, Demetrios N.
Article History
Received: 2 January 2014
Accepted: 19 March 2014
First Online: 16 April 2014
Competing interests
: The authors declare no competing financial interests.