4: Ökonomische Schriften. - Marx, Karl, 1818-1883. (OLS)http://ftis/name/52840; Kautsky, Benedikt. (OLS)http://ftis/name/54134; Lieber, Hans-Joachim. (OLS)http://ftis/name/54133 (Cotta-Verlag, 1962)

Chiese e notai (secoli 12.-15.) (Cierre Edizioni,, 2004)