@ARTICLE{
author={Matovic Stefana,Lovic-Obradovic Suzana,Demirovic-Bajrami Dunja,Djordjevic Ivana SL},
year={2026},
title={Beyond Averages: A Multilevel Analysis of Digital Skills and Circular Economy Outcomes in the Twin Transition},
journal={SUSTAINABILITY},
volume={18},
number={9},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Djordjevic Ivana SL,Jovanovic Slavoljub,Markovic Mina,Andjelkovic Sladjana,Prnjat Zorica R,Matovic Stefana,Valjarevic Aleksandar Dj},
year={2026},
title={Project-Based Learning in Geography and Its Impact on Developing Students' Values, Attitudes and Pro-Environmental Behavior},
journal={SUSTAINABILITY},
volume={18},
number={2},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Jovanovic Slavoljub,Miljkovic Olgica,Zivkovic Ljiljana SL,Sabic Dejan,Gataric Dragica,Djordjevic Ivana SL,Dzinovic Milanka},
year={2017},
title={Environmental Knowledge as a Factor of Personal Environmental Responsibility: Implications for Environmental Education in Serbia},
journal={JOURNAL OF ENVIRONMENTAL PROTECTION AND ECOLOGY},
volume={18},
number={3},
pages={1223-1230},
document_type={Article},
}