Enciclopedia Italiana link

https://www.treccani.it/enciclopedia/johann-oldendorp/?search=Oldendorp%2C%20Johann%2F

Wikipedia link

https://it.wikipedia.org/wiki/Johann_Oldendorp

Viaf Link

https://viaf.org/viaf/14856896/#Oldendorp,_Johann,_1480-1567