Lin, I-Ting http://orcid.org/0000-0001-9025-9611
Wang, Tiesheng http://orcid.org/0000-0001-7587-7681
Zhang, Fenghua
Smoukov, Stoyan K.
Article History
Received: 7 August 2017
Accepted: 7 September 2017
First Online: 2 October 2017
Competing Interests
: The authors declare that they have no competing interests.