@ARTICLE{
author={Hajdukovic-Jandric Gordana,Obadovic Dusanka Z,Stojanovic Maja M,Rancic Ivana},
year={2011},
title={Impacts of the Implementation of the Problem-based Learning in Teaching Physics in Primary Schools},
journal={NEW EDUCATIONAL REVIEW},
volume={25},
number={3},
pages={194-204},
document_type={Article},
} 

@ARTICLE{
author={Hajdukovic-Jandric Gordana,Obadovic Dusanka Z,Stojanovic Maja M},
year={2009},
title={The Problem Solving Method in Teaching Physics in Elementary School},
journal={7TH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION VOLS 1 AND 2},
volume={1203},
number={},
pages={1320-1324},
document_type={Proceedings Paper},
}