Atomic energy in the Soviet Union - Arnold Kramish
Arnold Kramish - Atomic Energy in the Soviet Union, p.126.
Until 1956, according to a White House statement, approximately 80 per cent of the US tests had been of fission devices and the remainder thermonuclear. Examination of the meager data available indicates approximately the same ratio for the Soviets.
Until 1956, according to a White House statement, approximately 80 per cent of the US tests had been of fission devices and the remainder thermonuclear. Examination of the meager data available indicates approximately the same ratio for the Soviets.