Source images IDS 16010 BJ, AS (from the former Prussian State Library in Berlin), No. 6. 17, p. [No6_17p1] unnumbered (Latin fair copy in secretary's hand, author's signature, 16th-century)
Facsimile of the source from the collection of Biblioteka Jagiellońska, AS (from the former Prussian State Library in Berlin), No. 6. 17; copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.