Wedig, Anja http://orcid.org/0000-0002-2880-1825
Luebben, Michael
Cho, Deok-Yong http://orcid.org/0000-0001-5789-8286
Moors, Marco
Skaja, Katharina
Rana, Vikas
Hasegawa, Tsuyoshi
Adepalli, Kiran K.
Yildiz, Bilge
Waser, Rainer
Valov, Ilia http://orcid.org/0000-0002-0728-7214
Article History
Received: 3 October 2014
Accepted: 25 August 2015
First Online: 28 September 2015
Competing interests
: The authors declare no competing financial interests.