1. prof Srećko Stopić (2026) "MODIFICATION OF TIONITE BY ALKALINE ROASTING FOR IMPROVED TITANIUM LEACHING" - Contemporary Materials 2026 - Savremeni Materijali
(https://ekonferencije.com/sr/rad/modification-of-tionite-by-alk/6786)

2. prof Srećko Stopić (2025) "" - Contemporary Materials 2025 - Savremeni Materijali
(https://ekonferencije.com/sr/rad//6730)

3. prof Srećko Stopić (2025) "POTENTIAL OF RED MUD IN FENTON PROCESSES FOR THE DEGRADATION OF ORGANIC POLLUTANTS IN WATER: A MINI REVIEW" - Contemporary Materials 2025 - Savremeni Materijali
(https://ekonferencije.com/sr/rad/potential-of-red-mud-in-fenton/6709)

4. prof Srećko Stopić (2025) "THERMAL TGA-DSC ANALYSIS OF RED MUD IN THE BAYER PROCESS" - Contemporary Materials 2025 - Savremeni Materijali
(https://ekonferencije.com/sr/rad/thermal-tga-dsc-analysis-of-re/6681)

5. prof Srećko Stopić (2024) "ANALYSIS AND INITIAL QUALITATIVE ASSESSMENT OF RED MUD IN THE BAYER PROCESS" - Contemporary Materials 2024 - Savremeni Materijali
(https://ekonferencije.com/sr/rad/analysis-and-initial-qualitati/6582)