Zhang, Wei
Gao, Sheng
He, Xu
Funding for this research was provided by:
National Natural Science Foundation of China (51505470, 51605474)
The State Key Laboratory of Robotics (Y7A1200301)
Article History
Received: 17 October 2017
Revised: 21 November 2017
Accepted: 23 November 2017
First Online: 2 December 2017
Compliance with ethical standards
:
: The author(s) declare(s) that there is no conflict of interests regarding the publication of this article.