Chuang, Pojen
Ho, Sheng-Chin
Smith, L. W.
Sfigakis, F.
Pepper, M.
Chen, Chin-Hung
Fan, Ju-Chun
Griffiths, J. P.
Farrer, I.
Beere, H. E.
Jones, G. A. C.
Ritchie, D. A.
Chen, Tse-Ming
Article History
Received: 7 May 2014
Accepted: 11 November 2014
First Online: 22 December 2014
Competing interests
: The authors declare no competing financial interests.