Wu, Kedi
Torun, Engin
Sahin, Hasan http://orcid.org/0000-0002-6189-6707
Chen, Bin
Fan, Xi
Pant, Anupum
Parsons Wright, David
Aoki, Toshihiro
Peeters, Francois M.
Soignard, Emmanuel
Tongay, Sefaattin
Article History
Received: 29 February 2016
Accepted: 18 August 2016
First Online: 22 September 2016
Competing interests
: The authors declare no competing financial interests.