Ng, Michael K.
Zhu, Zhaochen http://orcid.org/0000-0001-9653-4266
Funding for this research was provided by:
Hong Kong Baptist University (RC-ICRS/16-17/03-MATH)
Research Grants Council, University Grants Committee (12306616)
Research Grants Council, University Grants Committee (12200317)
Article History
Received: 6 March 2017
Accepted: 23 February 2018
First Online: 20 March 2018