1] prof Snežana Petković AN ENVIRONMENTAL IMPACT ASSESSMENT RAW MATERIALS AND RENEWABLE/RENOVATE SOURCE ENERGY IN FARM MACHINERY" - 12. Međunarodna konferencija o dostignućima elektrotehnike, mašinstva i informatike, 17.03.2015.
(https://ekonferencije.com/sr1/rad/an-environmental-impact-assess/3214)

2] prof Snežana Petković HARMFULNESS of exhausted system motor SUS in CONFINED SPACE" - 12. Međunarodna konferencija o dostignućima elektrotehnike, mašinstva i informatike, 01.03.2015.
(https://ekonferencije.com/sr1/rad/harmfulness-of-exhausted-syste/2971)