@book{1117,
	author = {Sen, P. C.},
	title = {Principles of Electric Machines and Power Electronics },
	publisher = {John Wiley & Sons},
	year = {1997.},
	address = {New York},
	edition = {2nd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/9971512041/chopaconline-20}
}