P. Kundur, J. Paserba, V. Ajjarapu, G. Andersson, A. Bose, C. Canizares, N. Hatziargyriou,
D. Hill, A. Stankovic, C. Taylor, 2004, Definition and classification of power system
stability IEEE/CIGRE joint task force on stability terms and definitions, IEEE transactions
on Power Systems, Vol. 19, No. 3, pp. 1387-1401