Tang, Jie
Meng, Fanyong
Funding for this research was provided by:
the National Natural Science Foundation of China (71571192)
the Beijing Intelligent Logistics System Collaborative Innovation Center (2019KF-09)
the Major Project for National Natural Science Foundation of China (91846301, 71790615)
Article History
First Online: 19 February 2020
Compliance with ethical standards
:
: The authors declare that there is no conflict of interests regarding the publication of this paper.
: This article does not contain any studies with human participants or animals performed by any of the authors.