Liu, Jie
Moyankova, Daniela
Lin, Chih-Ta
Mladenov, Petko
Sun, Run-Ze
Djilianov, Dimitar
Deng, Xin http://orcid.org/0000-0002-6075-2429
Funding for this research was provided by:
China-Bulgaria's Inter-Governmental S&T Cooperation committee (14-10)
Bulgarian Science Fund (DNTS/China/01/7)
Article History
Received: 29 May 2018
Accepted: 22 November 2018
First Online: 13 December 2018
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: The authors declare that they have no competing interests.
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