A. P. Sakis Meliopoulos George J. Cokkinides A. G. Bakirtzis Load-Frequency Control Service in a Deregulated Environment. 24-31 1998 HICSS (3) http://computer.org/proceedings/hicss/8239/82390024abs.htm db/conf/hicss/hicss1998-3.html#MeliopoulosCB98