Yu, Xiao
Li, Qing
Liu, Jin
Funding for this research was provided by:
National Natural Science Foundation of China (61572374, U1636220)
Guangxi Key Laboratory of Trusted Software (kx201607)
Academic Team Building Plan for Young Scholars from Wuhan University (WHU2016012)
National Science Foundation (DGE-1522883)
Article History
Received: 14 November 2017
Revised: 20 February 2018
Accepted: 5 April 2018
First Online: 10 May 2018