@inproceedings{fregosi_bhattacharya_2013, title={A novel method for control of distributed storage devices in distribution: Ripple voltage injection with frequency droop}, DOI={10.1109/pesmg.2013.6672278}, booktitle={2013 ieee power and energy society general meeting (pes)}, author={Fregosi, D. and Bhattacharya, S.}, year={2013} }
 @inproceedings{fregosi_bhattacharya_atcitty_2011, title={Empirical battery model characterizing a utility-scale carbon-enhanced VRLA battery}, DOI={10.1109/ecce.2011.6064248}, booktitle={2011 IEEE Energy Conversion Congress and Exposition (ECCE)}, author={Fregosi, D. and Bhattacharya, S. and Atcitty, S.}, year={2011}, pages={3541–3548} }