Billington, James H. Fire in the minds of men, Transaction Publishers, 1999,
p. 455, ISBN 0765804719, 9780765804716
Pearson, Raymond. The rise and fall of the Soviet Empire, Palgrave Macmillan, p. xx, 1998, ISBN 0312174071
Lane, David Stuart e Ross, Cameron. The transition from communism to capitalism: ruling elites from Gorbachev to Yeltsin, Palgrave Macmillan, 1999, p. 25-26, ISBN 0312216122, 9780312216122
