@ARTICLE{
author={Stefanovic Velimir P,Pavlovic Sasa R,Ilic Marko N,Apostolovic Nenad S,Kustrimovic Dragan D},
year={2012},
title={Numerical Simulation of Concentrating Solar Collector P2CC with a Small Concentrating Ratio},
journal={THERMAL SCIENCE},
volume={16},
number={},
pages={S471-S482},
document_type={Article},
} 

@ARTICLE{
author={Stefanovic Velimir P,Bojic Milorad Lj,Pavlovic Sasa R,Apostolovic Nenad S,Nikolic I,Djordjevic Zorica D,Catic Dobrivoje M},
year={2011},
title={A prototype receiver for medium temperature conversion of solar radiation to heat},
journal={PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY},
volume={225},
number={A8},
pages={1111-1119},
document_type={Article},
}