Wang, Zhu-Jun
Dong, Jichen
Cui, Yi
Eres, Gyula
Timpe, Olaf
Fu, Qiang http://orcid.org/0000-0001-5316-6758
Ding, Feng
Schloegl, R.
Willinger, Marc-Georg
Article History
Received: 12 March 2016
Accepted: 13 September 2016
First Online: 19 October 2016
Competing interests
: The authors declare no competing financial interests.