@ARTICLE{
author={Popovic Dragan P,Dobrijevic Djordje M,Mijuskovic Neso A,Vlaisavljevic Dragan J},
year={2001},
title={An advanced methodology for steady-state security assessment of power systems},
journal={EUROPEAN TRANSACTIONS ON ELECTRICAL POWER},
volume={11},
number={4},
pages={227-233},
document_type={Article},
} 

@ARTICLE{
author={Dobrijevic Djordje M,Jankovic Marko V},
year={1999},
title={An improved method of damping of generator oscillations},
journal={IEEE TRANSACTIONS ON ENERGY CONVERSION},
volume={14},
number={4},
pages={1624-1629},
document_type={Article},
}