Embedding Grid Graphs on Surfaces. - Christian Millichap; Fabian Salinas (Graphs Comb., 2022)

Deciphering Secrets Throughout History: An Interdisciplinary Linguistics and Cryptology Course. - Eunice Kim; Christian Millichap (HistoCrypt, 2023)

Modifying twist algorithms for determining the key length of a Vigenère cipher. - Christian Millichap; Yeeka Yau; Alyssa Pate; Morgan Carns (Cryptologia, 2024)

An artificial neural network approach to finding the key length of the Vigenère cipher. - Christian Millichap; Yeeka Yau (Cryptologia, 2025)