The Application of Hierarchical Clustering to Homophonic Ciphers. - Anna Lehofer (HistoCrypt, 2018)

Key Design in the Early Modern Era in Europe. - Beáta Megyesi; Crina Tudor; Benedek Láng; Anna Lehofer (HistoCrypt, 2021)

What Was Encoded in Historical Cipher Keys in the Early Modern Era? - Beáta Megyesi; Crina Tudor; Benedek Láng; Anna Lehofer; Nils Kopal; Michelle Waldispühl (HistoCrypt, 2022)

Applying hierarchical clustering to homophonic substitution ciphers using historical corpora. - Anna Lehofer (Cryptologia, 2022)

Keys with nomenclatures in the early modern Europe. - Beáta Megyesi; Crina Tudor; Benedek Láng; Anna Lehofer; Nils Kopal; Karl de Leeuw; Michelle Waldispühl (Cryptologia, 2024)