@book{4503,
	author = {Sen, P. C.},
	title = {Principles of electric machines and power electronics},
	publisher = {John Wiley & Sons,},
	year = {c1997.},
	address = {New York :},
	edition = {2nd ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/wiley033/96047305.html}
}