Vimalraj, Cyril http://orcid.org/0000-0003-1726-4232
Kah, Paul
Layus, Pavel
Belinga, Eric Mvola
Parshin, Sergey
Funding for this research was provided by:
Lappeenranta University of Technology
Article History
Received: 31 August 2018
Accepted: 18 November 2018
First Online: 22 December 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.