@ARTICLE{
author={Obradovic Stojan},
year={2013},
title={Empirical Evidence in the Structure of Physical Theories},
journal={FOUNDATIONS OF SCIENCE},
volume={18},
number={2},
pages={307-318},
document_type={Article},
} 

@ARTICLE{
author={Obradovic Stojan,Ninkovic Slobodan D},
year={2009},
title={Gnoseological Status of Theories in Astronomy and Physics},
journal={PROCEEDINGS OF THE XV NATIONAL CONFERENCE OF ASTRONOMERS OF SERBIA},
volume={86},
number={},
pages={223-229},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Obradovic Stojan,Ninkovic Slobodan D},
year={2009},
title={The Heuristic Function of Mathematics in Physics and Astronomy},
journal={FOUNDATIONS OF SCIENCE},
volume={14},
number={4},
pages={351-360},
document_type={Article},
} 

@ARTICLE{
author={Obradovic Stojan,Ninkovic Slobodan D},
year={2008},
title={Basical Forms Of Realisation Of Heuristic Function Of Mathematics In Physics And Astronomy},
journal={PROCEEDINGS OF THE MEETING STUDYING NATURE THROUGH CENTURIES - 120TH ANNIVERSARY OF BELGRADE OBSERVATORY},
volume={},
number={85},
pages={25-30},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Obradovic Stojan},
year={2006},
title={The structure of space},
journal={Proceedings of the 14th National Conference of Astronomers of Serbia and Montenegro},
volume={},
number={80},
pages={327-330},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Obradovic Stojan},
year={2006},
title={Mutual relationship between mathematics and astronomy in the ancient Greece},
journal={Proceedings of the 14th National Conference of Astronomers of Serbia and Montenegro},
volume={},
number={80},
pages={245-249},
document_type={Proceedings Paper},
}