A Borrowed Cipher for a Top-Secret Letter Written by Frederick of Aragon King of Naples to the Catholic Kings in the BnF, Espagnol 318. SSMD [Internet]. 2020 Nov. 30 [cited 2026 Jul. 27];(4):157-7. Available from: https://test-ojs-unimi-it.archicoop.it/index.php/SSMD/article/view/14378