1. N. V. Riasanovsky, A History of Russia (Oxford, 1963), p. 501.
2. L. Trotsky, ‘The History of the Russian Revolution to Brest-Litovsk’, in The Essential Trotsky (London, 1963), pp. 21–111.
3. V. I. Lenin, Collected Works, Vol. 31 (Moscow, 1974), pp. 24–6.
4. N. S. Komarov, ‘Sozdanie i deiatel’nost’ Istparta (1920–1928 gg.)’, Voprosy istorii KPSS, no. 5 (1958), p. 154; M. N. Pokrovsky, ‘O vozniknovenii Istparta’, Proletarskaia revoliutsiia, no. 7–8 (1930), p. 138.
5. A. I. Ulianova-Elizarova, ‘Retrospektivnyi vzgliad na Istpart i na zhurnal “Proletarskaia revoliutsiia”’, Proletarskaia revoliutsiia, no. 5 (1930), p. 158.