@book{10,
	author = {Say, M. G.},
	title = {The performance and design of alternating current machines; transformers, three-phase induction motors and synchronous machines,},
	publisher = {CBS Publishers and Distributors},
	year = {1968.},
	address = {London,},
	edition = {3rd ed.},
	note = {Fourth ed. published in 1976 under title: Alternating current machines.}
}