BibTex format
@article{Anaparthi:2005,
author = {Anaparthi, KK and Chaudhuri, B and Thornhill, NF and Pal, BC},
journal = {IEEE Transactions on Power Systems},
pages = {1658--1660},
title = {Coherency identification in power systems through principal component analysis},
volume = {20},
year = {2005}
}