Sources and methods series: considering other record groups in Nara holding cryptologic and cryptologic-related records. - Robert J. Hanyok; Betsy Rohaly Smoot (Cryptologia, 2020)

Sources and methods: contingency and its role in researching records of cryptologic history - a discussion and some lessons to apply for future research. - Robert J. Hanyok; Betsy Rohaly Smoot (Cryptologia, 2020)

Introducing a new Cryptologia series: Sources and methods for cryptologic history. - David Sherman; Betsy Rohaly Smoot; Robert J. Hanyok (Cryptologia, 2020)

Sources and methods for cryptologic history: Research at the US National Archives-the "Big Two" Record Groups. - Betsy Rohaly Smoot; Robert J. Hanyok (Cryptologia, 2020)

Sources and methods: Searching for cryptologic records in the findings of post-World War II allied technical surveys and commissions. - Robert J. Hanyok (Cryptologia, 2021)