@book{9453,
	author = {Kirchmayer, Leon K.},
	title = {Economic operation of power systems /},
	publisher = {John Wiley & Sons Inc,},
	year = {1993.},
	address = {[S.l.] :},
	edition = {1st ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0471481807/chopaconline-20}
}