@ARTICLE{
author={Mileusnic Zoran I,Petrovic Dragan VL,Djevic Milan S},
year={2010},
title={Comparison of tillage systems according to fuel consumption},
journal={ENERGY},
volume={35},
number={1},
pages={221-228},
document_type={Article},
} 

@ARTICLE{
author={Djevic Milan S,Dimitrijevic Aleksandra Z},
year={2009},
title={Energy consumption for different greenhouse constructions},
journal={ENERGY},
volume={34},
number={9},
pages={1325-1331},
document_type={Article},
}