1] prof Predrag Janković PREDICTION OF SURFACE ROUGHNESS USING REGRESSION AND ANN MODELS IN CO2 LASER CUTTING OF MILD STEEL" - 12. Međunarodna konferencija o dostignućima elektrotehnike, mašinstva i informatike, 06.05.2015.
(https://ekonferencije.com/en/paper/prediction-of-surface-roughnes/3530)

2] prof Predrag Janković AN EXPERIMENTAL INVESTIGATION OF KERF WIDTH IN CO2 LASER CUTTING OF ALUMINUM ALLOY" - 12. Međunarodna konferencija o dostignućima elektrotehnike, mašinstva i informatike, 04.05.2015.
(https://ekonferencije.com/en/paper/an-experimental-investigation-/3515)