1. Construction of power system electromechanical equivalents by modal analysis;Undrill;IEEE Trans.,1971
2. Coherency-based dynamic equivalents;DeMello;IEEE Trans.,1976
3. Identification of coherent generators for dynamic equivalents;Podmore;IEEE Trans.,1978
4. A modal-coherency technique for deriving dynamic equivalents;Geeves;IEEE Trans.,1988
5. Singular perturbation analysis of systems with sustained high frequency oscillations;Chow;Automatica,1978