Marjanovic, Ugljesa. “OBITUARY: Emeritus Professor Dr. Dragutin Zelenovic (1928-2020) Founder and Principal Editor of IJIEM (2010-2019)”. International Journal of Industrial Engineering and Management 11, no. 2 (June 30, 2020): 144–145. Accessed November 21, 2024. http://sp.ftn.uns.ac.rs/index.php/ijiem/article/view/106.