1. mr Slobodan Velikić (2019) "PROPOSALS FOR IMPROVEMENT OF THE PUBLIC TRAFFIC SAFETY AT THE CROSSING OF THE ROAD AND RAILROAD LEVEL OF THE AREA OF REPUBLIC OF SRPSKA" - VIII Međunarodna konferencija Bezbjednost saobraćaja u lokalnoj zajednici
(https://ekonferencije.com/en/paper/proposals-for-improvement-of-t/5826)