Daniel Paluba, Charles University, Czechia; Lorenzo Giuliano Papale, Tor Vergata University of Rome, Italy; Triantafyllia-Maria Perivolioti, Aristotle University of Thessaloniki, Greece; Přemysl Štych, Josef Laštovička, Charles University, Czechia; Panagiotis Kalaitzis, University of the Aegean, Greece; Georgia Karadimou, Elena Papageorgiou, Antonios Mouratidis, Aristotle University of Thessaloniki, Greece