@book{90889,
	author = {Wittgenstein, Ludwig, and Baum, Wilhelm,},
	title = {Diarios secretos /},
	publisher = {Alianza Editorial,},
	year = {1998.},
	series = {Ensayo. El libro universitario},
	address = {Madrid :},
	edition = {1. ed. en "Ensayo."},
	note = {Original title: Geheime Tagebucher.}
}