1. Predrag Zivkovic (2017) "DETERMINING THE RELIABILITY OF PLANETARY GEAR FOR RATIONAL DEVELOPMENT OF STRUCTURAL SOLUTIONS " - 13th International Conference on Accomplishments in Mechanical and Industrial Engineering
(https://ekonferencije.com/sr1/rad/determining-the-reliability-of/4784)

2. Predrag Zivkovic (2015) "HEAT BALANCE OF LOSSES IN PLANETARY GEAR DRIVES" - 12. Međunarodna konferencija o dostignućima elektrotehnike, mašinstva i informatike
(https://ekonferencije.com/sr1/rad/heat-balance-of-losses-in-plan/3029)

3. Predrag Zivkovic (2015) "PARAMETRIC MODELING OF GEOMETRY SHAPES OF GEAR TEETH BY USING CAD SOFTWARE" - 12. Međunarodna konferencija o dostignućima elektrotehnike, mašinstva i informatike
(https://ekonferencije.com/sr1/rad/parametric-modeling-of-geometr/3028)