@ARTICLE{
author={Batas Bjelic Ilija R,Rajakovic Nikola Lj,Krajacic Goran,Duic Neven Z},
year={2016},
title={Two methods for decreasing the flexibility gap in national energy systems},
journal={ENERGY},
volume={115},
number={},
pages={1701-1709},
document_type={Article; Proceedings Paper},
} 

@ARTICLE{
author={Batas Bjelic Ilija R,Skokljev Ivan A,Puksec Tomislav,Krajacic Goran,Duic Neven Z},
year={2014},
title={Integrating the Flexibility of the Average Serbian Consumer as a Virtual Storage Option Into the Planning of Energy Systems},
journal={THERMAL SCIENCE},
volume={18},
number={3},
pages={743-754},
document_type={Article; Proceedings Paper},
}