Nguyen-Ngoc, Doanh
Nguyen-Huu, Tri http://orcid.org/0000-0002-1916-0499
Funding for this research was provided by:
IRD
Vietnam Institute for Advanced Study in Mathematics
SFBT
Article History
Received: 18 July 2018
Accepted: 27 July 2018
First Online: 10 August 2018