Aurelian Plopeanu
Alexandru Ioan Cuza University of Iasi, Romania
aplopeanu[at]gmail.com
https://orcid.org/0000-0003-2514-3166
Jan Mathys de Beer
Woosong University, South Korea
jandebeer777[at]gmail.com
https://orcid.org/0000-0003-2217-5955