The Story of the International Advisory Group Air Navigation Services ANSA
The Story of Rhein Control from 1957 to 1977
The Development of Air Navigation in West-Germany after 1945 - The First Ten Years
Schnellstraßen am Himmel / Das Army Airways Communication System AACS
Learning from Experience : Volume III: Lessons from the United Kingdom's Astute Submarine Program
Learning from Experience : Volume III: Lessons from the United Kingdom's Astute Submarine Program
Die Entwicklung der Flugsicherung in West-Deutschland nach 1945 - die ersten zehn Jahre