@book{28915,
	author = {Beethoven, Ludwig van },
	title = {Sonata para piano en do mayor no. 21 op. 53 "Aurora" ; Sonata para piano en fa menor no. 23 op. 57 "Appassionata" / },
	publisher = {Viscontea [distribuidor], },
	year = {c1979},
	series = {Los grandes músicos ; },
	address = {Buenos Aires : },
	note = {Piano: Alfred Brendel}
}