 Professor Ajduković has been involved in the scientific project called "Codes of Russian Cultures" at the University of Belgrade, Faculty of Philology (Serbia).Special part of the project has been dedicated to Russian language in contact with other Slavonic and European languages.He has attended various international symposiums on Philology, in Belgrade (Serbia), Skopje (Macedonia), Sofia (Bulgaria), Bratislava (Slovakia), Budapest (Hungary), Bucharest (Romania), Odessa (Ukraine), Ohrid (Macedonia), Island of Rab (Croatia), Herceg Novi (Montenegro), Timișoara (Romania), Porto Carras / Potidea Palace (Greece), Opatija (Croatia), Bechichi (Montenegro), Istanbul (Turkey), Szeged (Hungary), Constanza (Romania), Moscow (Russia), Tirana (Albania) and Sarajevo (Bosnia and Herzegovina).