Sources/SRC08JJA3G053MJ SRC08JJA3G053MJ · source · click to copy Un'ottima applicazione quattrocentesca del sistema cifrante monoalfabetico Costamagna · 1977 · Studi di Storia Medioevale e Diplomatica articleOpen access Open the PDF8 pages · 271 KB Cited by2 Reading Without a KeySRC0D8NJAWT22V4Survey: fifteenth-century Italian mixed keys and how they were brokenSRC0D8NJCVA17PZ