Found in articles
1991-07-01. Military Cryptanalytics, Part I (совместно с L.D. Callimahos). Washington, DC: National Security Agency, 1956. Military Cryptanalytics, Part II
Зендийская задача
Калимахос, Ламброс Callimahos, Lambros D. and Friedman, William F. Military Cryptanalytics, Part II, Volume II (англ.). — Walnut Creek, CA: Aegean Park Press