@ARTICLE{
author={Kostic Valentina,Sekulic Tanja M},
year={2025},
title={Enhancing Visual Reasoning in Calculus: Introducing a New Typology of Graphical Tasks},
journal={MATHEMATICS AND INFORMATICS},
volume={68},
number={2},
pages={170-187},
document_type={Article},
} 

@ARTICLE{
author={Sekulic Tanja M,Takaci Djurdjica B,Strboja Mirjana,Kostic Valentina},
year={2020},
title={Influence of Mathematical Modeling in <i>GeoGebra</i> Environment on Learning Derivative},
journal={INTERNATIONAL JOURNAL FOR TECHNOLOGY IN MATHEMATICS EDUCATION},
volume={27},
number={2},
pages={61-82},
document_type={Article},
}