University of Gent, Belgium; Danube University Krems, Austria; University of Tuzla, Bosnia & Herzegovina; University “Dzemal Bijedic” Mostar, Bosnia & Herzegovina; University of Mostar, Bosnia & Herzegovina; University of Banja Luka, Bosnia & Herzegovina; University of Rijeka, Croatia; University od Split, Croatia; University of Tetovo, Macedonia; University of Novi Sad, Serbia; Univerza v Mariboru, Filozofska fakulteta, Slovenia.
