The Voynich Manuscript Compared with Other Encrypted Books. - Klaus Schmeh; Elonka Dunin (VOY, 2022)

How we set new world records in breaking Playfair ciphertexts. - Elonka Dunin; Magnus Ekhall; Konstantin Hamidullin; Nils Kopal; George Lasry; Klaus Schmeh (Cryptologia, 2022)

Review of the second edition of Craig Bauer's " Secret History: The Story of Cryptology, Second Edition "Bauer, Craig P. Secret History: The Story of Cryptology. Second Edition . CRC Press, Boca Raton, FL, 2021. 650 pages, Hardcover. ISBN 978-1138061231.: Bauer, Craig P. CRC Press, Boca Raton, FL, 2021. 650 pages, hardcover. ISBN 978-1138061231. - Elonka Dunin; Klaus Schmeh (Cryptologia, 2024)