Vaithianathan VenkatasubramanianRajesh G. KavasseriDirect Computation of Generator Internal Dynamic States from Terminal Measurements.2004conf/hicss/2004HICSShttps://doi.org/10.1109/HICSS.2004.1265193https://doi.ieeecomputersociety.org/10.1109/HICSS.2004.1265193db/conf/hicss/hicss2004.html#VenkatasubramanianK04