Vagniluca, I., N. Biagi, D. Bacco, and A. Zavatta. “A Quantum Cryptography System Used to Encrypt the Italian Prime Minister’s Videocall at ESOF2020”. Il Colle Di Galileo, vol. 10, no. 1, Mar. 2021, pp. 43-47, doi:10.36253/cdg-12718.