https://web.archive.org/web/20190217142232/https://www.dmgh.de/de/fs1/object/display/bsb00000735_meta:titlePage.html?sortIndex=010:070:0032:010:00:00&zoom=0.75|archive-date= 17 febbraio 2019 (fr)
https://web.archive.org/web/20190217142232/https://www.dmgh.de/de/fs1/object/display/bsb00000735_meta:titlePage.html?sortIndex=010:070:0032:010:00:00&zoom=0.75|archive-date= 17 febbraio 2019 (fr)