1. Balatsky, G. and E. Diener: 1993, ?Subjective well-being among Russian students?, Social Indicators Research 28, pp. 225?244.
2. Brickman, P. and D. T. Campbell: 1971, ?Hedonic relativism and planning the good society?, in Appley (ed.), Adaptation Level Theory, a Symposion (Academic Press, London, UK), pp. 287?302.
3. Easterlin, R. A.: 1974, ?Does economic growth improve the human lot? Some empirical evidence?, in P. A. Davis and W. R. Melvin (eds.), Nations and Households in Economic Growth (Stanford University Press, Paolo Alto), pp. 98?125.
4. Estes, R. J.: 1984, The Social Progress of Nations (Preager, New York).
5. IMF: 1987, Government Finance Statistics Yearbook, Vol XI (International Monetary Fund, Washington).