Petrarca, Francesco: Francisci Petrarchae De remediis utriusque fortunae libri duo : cum indicibus locupletissimis. Bernae : Le Preux: [1600]. Universitätsbibliothek Mainz, https://nbn-resolving.org/urn:nbn:de:hebis:77-vcol-22121 / Public Domain Mark 1.0