@book{35677,
	author = {Ortega Plana, Juan María. and Ramírez Vázquez, José.},
	title = {Máquinas de corriente alterna /},
	publisher = {CEAC },
	year = {1982.},
	series = {Enciclopedia CEAC de electricidad.},
	address = {Barcelona },
	edition = {4a ed.}
}