Li, Qiang https://orcid.org/0000-0001-7458-9450
Popov, Valentin L. https://orcid.org/0000-0003-0506-3804
Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (DFG PO 810/55-1)
Article History
Received: 20 November 2018
Revised: 25 February 2019
First Online: 25 March 2019