ROLF FIEGUTH – University of Fribourg, Switzerland (ORCID ID: 0000-0002-2250-9508)
MARIA KALINOWSKA – University of Warsaw, Poland (ORCID ID: 0000-0003-3251-8528)
ELŻBIETA NOWICKA – Adam Mickiewicz University in Poznań, Poland (ORCID ID: 0000-0002-8166-8306)
WALDEMAR OKOŃ – University of Wrocław, Poland (ORCID ID: 0000-0002-6958-4142)
HENRYK SIEWIERSKI – University of Brasília, Brazil (ORCID ID: 0000-0002-3971-7207)
WŁADYSŁAW STRÓŻEWSKI – Jagiellonian University in Kraków, Poland, Prof. Emeritus
KRZYSZTOF TRYBUŚ – Adam Mickiewicz University in Poznań, Poland (ORCID ID: 0000-0002-4285-4595)
JAN ZIELIŃSKI – University of Fribourg, Switzerland (ORCID ID: 0000-0002-0765-3536)