1. Biddle W. Barons of the Sky: From Early Flight to Strategic Warfare, the Story of the American Aerospace Industry. Simon and Schuster, New York, NY, 1991. Paperback edition by Henry Holt, 1993.
2. Boeing Commercial Airplane Group. Statistical Summary of Commercial Jet Aircraft Accidents, Worldwide Operations,1959–1994. Seattle, WA, Mar. 1995. Published annually by Boeing Airplane Safety Engineering (B-210B).
3. Brazendale J, and Jeffs AR. Out of control: Failures involving control systems. High Integrity Systems 1, 1 (1994), 67–72.
4. Burns R W. Genius at work. IEE Review 39, 5 (Sept. 1993), 187–189.
5. Butler R W, and Finelli G B. The infeasibility of experimental quantification of life-critical software reliability. IEEE Transactions on Software Engineering 19, 1 (Jan. 1993), 3–12.