Bibliographical links

OPAC Unipv

https://openweb.unipv.it/openweb/#!cerca?q=braun%20karl%20ferdinand

Person Links

Altra fonte

Treccani - Enciclopedia on line

Enciclopedia Italiana link

http://www.treccani.it/enciclopedia/karl-ferdinand-braun_%28Enciclopedia-Italiana%29/

Wikipedia link

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