Bae, Hyeonhu
Park, Minwoo
Jang, Byungryul
Kang, Yura
Park, Jinwoo
Lee, Hosik
Chung, Haegeun
Chung, ChiHye
Hong, Suklyun
Kwon, Yongkyung
Yakobson, Boris I.
Lee, Hoonkyung
Article History
Received: 30 October 2015
Accepted: 1 February 2016
First Online: 23 February 2016
Change Date: 13 September 2017
Change Type: Update
Change Details: A correction has been published and is appended to both the HTML and PDF versions of this paper. The error has not been fixed in the paper.
Competing interests
: The authors declare no competing financial interests.