Zhao, Han
Miao, Pei
Teimourpour, Mohammad H.
Malzard, Simon
El-Ganainy, Ramy
Schomerus, Henning
Feng, Liang
Article History
Received: 5 October 2017
Accepted: 13 February 2018
First Online: 7 March 2018
Competing interests
: The authors declare no competing interests.