@book{9393,
	author = {Say, M. G.},
	title = {Introduction to the unified theory of electromagnetic machines /},
	publisher = {Pitman,},
	year = {1980.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0273360647/chopaconline-20}
}