@ARTICLE{
author={Kalamkovic Snezana S,Halsi Tibor,Kalamkovic Martin},
year={2013},
title={Distance Learning Applied in Primary School Teaching},
journal={CROATIAN JOURNAL OF EDUCATION-HRVATSKI CASOPIS ZA ODGOJ I OBRAZOVANJE},
volume={15},
number={},
pages={251-269},
document_type={Article},
} 

@ARTICLE{
author={Halasi Tibor J,Kalamkovic Snezana S,Cvjeticanin Stanko M,Segedinac Mirjana D},
year={2010},
title={Academic Roots of Chemical Engineering in Xviii and Xix Century in Central Europe},
journal={HEMIJSKA INDUSTRIJA},
volume={64},
number={2},
pages={157-163},
document_type={Article},
}