Xin, Ming
Şafak, Kemal
Peng, Michael Y
Kalaydzhyan, Aram
Wang, Wen-Ting
Mücke, Oliver D
Kärtner, Franz X
Article History
Received: 26 April 2016
Revised: 5 July 2016
Accepted: 7 July 2016
First Online: 11 July 2016
Competing interests
: The authors declare no conflict of interest.