1. Available: http://odin.dep.no/oed/norsk/publ/stmeld/026005-040003/index-dok000-b-n-a.html [17 October 2003].
2. Technical and economical aspects of operation of thermal and hydro power systems, PhD dissertation, Norwegian University of Science and Technology ,NTNU, Report No. 16, Trondheim, Norway, 1997.
3. Power System Stability and Control. McGraw-Hill: New York, NY, 1994.
4. (ed.). Analysis and control of power system oscillations. Cigré Technical Brochure GT 38.01.07, Paris, 1997.
5. Initial results in Prony analysis of power system response signals