How I reconstructed a Spanish cipher from 1591. - Satoshi Tomokiyo (Cryptologia, 2018)

Identifying Italian ciphers from continuous-figure ciphertexts (1593). - Satoshi Tomokiyo (Cryptologia, 2019)

Deciphering Mary Stuart's lost letters from 1578-1584. - George Lasry; Norbert Biermann; Satoshi Tomokiyo (Cryptologia, 2023)