BibTex format
@article{Anagnostou:2017:10.1109/TPWRS.2017.2663107,
author = {Anagnostou, G and Pal, BC},
doi = {10.1109/TPWRS.2017.2663107},
journal = {IEEE Transactions on Power Systems},
pages = {116--130},
title = {Derivative-free Kalman filtering based approaches to dynamic state estimation for power systems with unknown inputs},
url = {http://dx.doi.org/10.1109/TPWRS.2017.2663107},
volume = {33},
year = {2017}
}