@ARTICLE{
author={Zubac Marina,Milinkovic Dragica,Markovic Olivera R},
year={2021},
title={Internal Motivation and Students' Knowledge of Math},
journal={CROATIAN JOURNAL OF EDUCATION-HRVATSKI CASOPIS ZA ODGOJ I OBRAZOVANJE},
volume={23},
number={2},
pages={317-342},
document_type={Article},
} 

@ARTICLE{
author={Markovic Olivera R,Pikula Milenko,Zubac Marina},
year={2019},
title={A Critical Analysis of the PISA Mathematics Tasks},
journal={CROATIAN JOURNAL OF EDUCATION-HRVATSKI CASOPIS ZA ODGOJ I OBRAZOVANJE},
volume={21},
number={1},
pages={233-274},
document_type={Article},
} 

@ARTICLE{
author={Markovic Olivera R,Eric Milomir D},
year={2014},
title={The problem of inadequate use of the mathematical language in the PISA test tasks},
journal={INTERNATIONAL CONFERENCE EDUCATION AND PSYCHOLOGY CHALLENGES - TEACHERS FOR THE KNOWLEDGE SOCIETY, 2ND EDITION (EPC -TKS 2013)},
volume={128},
number={},
pages={54-59},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Pikula Milenko,Vladicic Vladimir,Markovic Olivera R},
year={2013},
title={A solution to the inverse problem for the Sturm-Liouville-type equation with a delay},
journal={FILOMAT},
volume={27},
number={7},
pages={1237-1245},
document_type={Article},
}