@article{article693c65b0,
title   = {Using the output energy as performance index in the design of damping controllers for power systems},
author = {Oliveira, Ricardo Vasques de and Ramos, Rodrigo Andrade and Bretas, Newton Geraldo},
year = {2007},
doi = {10.1049/iet-cta:20060316},
journal   = {IET Control Theory and Applications}
}