1. R. V. Ivanov Razumnik, Tiurmy i ssylki (New York, 1953) p. 277
2. K. Bailes, Technology and Society under Lenin and Stalin (Princeton, 1978) pp. 69–121;
3. H. H. Schröder, Industrialisierung und Parteibüro kratie in der Sowjetunion (Berlin, 1988) pp. 216–30.
4. H. Kuromiya, Stalin’s Industrial Revolution (Cambridge, 1988) pp. 292–4; Bailes, p. 280; Schröder, pp. 317–23.
5. J. A. Getty, Origins of the Great Purges — The Soviet Communist Party Reconsidered, 1933–1938 (Cambridge, 1985) pp. 58–91;