1. NERC Disturbance Reports North American Electric Reliability Council N, 1996–2001.
2. Committee PSR. WG D6 power swing and out-of-step consideration on transmission lines. Power System Relaying Committee (PSRC) Report, IEEE-PES, Issued on the Published Reports Homepage on July, 2005. p. 19.
3. Liscouski B, Elliot W. Final report on the august 14, 2003 blackout in the United States and Canada: causes and recommendations. A report to US Department of Energy; 2004. p. 40.
4. REL 670 technical reference manual. ABB. .
5. MiCOM P444 application notes, AREVA. .