Pref. by Karl Radek. Moscow, State Publishers, 1931. Notes See Volume 21 of the Great Soviet Encyclopedia, New York; 1978. External links Science in Russia and the Soviet Union: A Short History By Loren R. Graham Published by Cambridge University Press, 1993 - Russian technocratic influence of engineers, subsequent deaths, trials and imprisonments. Soviet show trials Political and cultural purges 1930 in the Soviet Union