Letter from August Boeckh to Karl August Varnhagen von Ense (Berlin, 30 November 1845). Ed. by Sabine Seifert. In: "Letters and texts: Intellectual Berlin around 1800". Ed. by Anne Baillot. Berlin: Humboldt-Universit├Ąt zu Berlin. http://www.berliner-intellektuelle.eu/manuscript?Brief110BoeckhanVarnhagen. Last modified: 2 July 2014.