@book{35186,
	author = {Camargo Uribe, Leonor. and Guzmán Castro, Ana Alicia.},
	title = {Elementos para una didactica del pensamiento variacional :},
	publisher = {Cooperativa Editorial del Magisterio,},
	year = {2005.},
	series = {Colección Didacticas},
	address = {Bogotá :}
}