< /ˌɛ uˈdʒɛ nyɔ/, 1835–1900, Italian mathematician.
Eugenio Beltrami – Wikipedia, la enciclopedia libre
Eugenio Beltrami – EcuRed
RMG – 50° aniversario del Venerable Don Andrea Beltrami SDB
Luca Beltrami – Wikipedia
Beltrami Portraits
File:Luca Beltrami (crop).jpg – Wikimedia Commons