@ARTICLE{
author={Stankovic Aleksandar M,Djukic Savo D,Saric Andrija T},
year={2015},
title={Approximate Bisimulation-Based Reduction of Power System Dynamic Models},
journal={IEEE TRANSACTIONS ON POWER SYSTEMS},
volume={30},
number={3},
pages={1252-1260},
document_type={Article},
} 

@ARTICLE{
author={Djukic Savo D,Saric Andrija T},
year={2013},
title={A new approach to physics-based reduction of power system dynamic models},
journal={ELECTRIC POWER SYSTEMS RESEARCH},
volume={101},
number={},
pages={17-24},
document_type={Article},
}