1. Bagchi, A.K. (1978), ?On the political economy of technological choice and development?, Cambridge Journal of Economics 2, 215?232.
2. Barber, J. (1986), ?The development of Soviet employment and labour policy, 1930?41?, in: Lane, D. (Ed.), Labour and Employment in the USSR. Wheatsheaf Books, London.
3. Berkowitz, D. (1988), ?A Theory of the Transition from a Labor Surplus to a Labor Scarce Economy: An Application to the Soviet Union?, Ph.D. Dissertation, Columbia University.
4. Bruno, M. (1969), ?Fundamental duality relations in the pure theory of capital and growth?, Review of Economic Studies 36, 39?53.
5. Cass, D. (1965), ?Optimal growth in an aggregative model of capital accumulation?, Review of Economic Studies 32, 223?240.