1. dr Vlada Veljkovic (2016) "Green synthesis of 5-nitroistin derivatives" - XI Savjetovanje hemičara, tehnologa i ekologa Republike Srpske
(https://ekonferencije.com/en/paper/green-synthesis-of-5-nitroisti/4731)

2. dr Vlada Veljkovic (2016) "THE IMPACT OF PROPYLENE GLYCOL AS COSOLVENT FOR THE CAO-CATALYZED ETHANOLYSIS OF SUNFLOWER OIL" - XI Savjetovanje hemičara, tehnologa i ekologa Republike Srpske
(https://ekonferencije.com/en/paper/the-impact-of-propylene-glycol/4671)

3. dr Vlada Veljkovic (2016) "DEEP EUTECTIC SOLVENT CHOLINE CHLORIDE-THIOUREA AS COSOLVENT IN CAO-CATALYZED SUNFLOWER OIL ETHANOLYSIS" - XI Savjetovanje hemičara, tehnologa i ekologa Republike Srpske
(https://ekonferencije.com/en/paper/deep-eutectic-solvent-choline-/4669)

4. dr Vlada Veljkovic (2016) "UTILIZATION OF WALNUT SHELL ASH AS A CATALYST FOR BIODIESEL SYNTHESIS" - XI Savjetovanje hemičara, tehnologa i ekologa Republike Srpske
(https://ekonferencije.com/en/paper/utilization-of-walnut-shell-as/4513)