@ARTICLE{
author={Kostic Vojin,Raicevic Nebojsa B},
year={2016},
title={An alternative approach for touch and step voltages measurement in high-voltage substations},
journal={ELECTRIC POWER SYSTEMS RESEARCH},
volume={130},
number={},
pages={59-66},
document_type={Article},
} 

@ARTICLE{
author={Kostic Vojin,Raicevic Nebojsa B},
year={2016},
title={A study on high-voltage substation ground grid integrity measurement},
journal={ELECTRIC POWER SYSTEMS RESEARCH},
volume={131},
number={},
pages={31-40},
document_type={Article},
} 

@ARTICLE{
author={Kostic Vojin,Raicevic Nebojsa B,Pavlovic Aleksandar},
year={2015},
title={Enhanced grounding system impedance measurements for high-voltage substations},
journal={INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS},
volume={25},
number={9},
pages={1875-1883},
document_type={Article},
}