1. M. Kaser, Soviet Economics (London, 1970) p. 144;
2. Stat. Abst. 1969, p. 327.
3. V. V. Pokshishevskiy, ‘On basic migration patterns’ in Soviet Geography, V (1964) no. 10, pp. 3–18.
4. V. V. Pokshishevskiy, in Soviet News (London, 20 Jan 1970) p. 35
5. J. S. Berliner, ‘Managerial incentives and decision making’ in Comparisons of the United States and Soviet Economies (Papers), Joint Economic Committee, Congress of the United States (Washington, 1959) p. 350.