1.
Narváez, Roberto. 2011. The cryptography of the “maderistas” in the Mexican Revolution (1910-1911). Cryptanalysis of a cipher letter by Gabriel Leyva Solano. Documenta & Instrumenta - Documenta et Instrumenta 9, 25–39. DOI:https://doi.org/10.5209/rev_DOCU.2011.v9.38056