1. V. I. Kalashnikova, V. P. Zakharova, A. V. Krasnushkin, V. I. Lebedev and M. I. Pevzner. Conference on the Peaceful Uses of Atomic Energy, June 1?5, 1955, Acad. Sci. USSR, Div. Phys.-Math. Sci. (Acad. Sci. USSR Press, 1955) p. 161.
2. R B. Leachman, ?Determination of fission quantities of importance to reactors? Report No. 592 presented by USA at the International Conference on the Peaceful Uses of Atomic Energy, 1955.