@article{article255459a0,
title   = {A primary and backup cooperative protection system based on wide area agents},
author = {Giovanini, Renan and Hopkinson, Kenneth M. and Coury, Denis Vinicius and Thorp, James Shelby},
year = {2006},
doi = {10.1109/tdc.2004.1432418},
journal   = {IEEE Transactions on Power Delivery}
}