1. The magnetic mirror approach to fusion
2. Open traps
3. G. I. Budker,Plasma Physics and The Problem of Controlled Thermonuclear Reactions(Pergamon, New York, 1959), Vol. 3, pp. 1–34.
4. J. Berkowitz, K. O. Friedrichs, H. Goertzel, H. Grad, J. Killeen, and E. Rubin, in Proceedings of 2nd U.N. International Conference on Peaceful Uses of Atomic Energy, United Nations, Geneva, 1958, Vol. 31, p. 171.