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The disequilibrium model in a controlled economy
Howard, David H., (1979)
Methods of dynamic economics
Hicks, John, (1985)
Keynesian unemployment as non-Walrasian equilibria
Sondermann, Dieter, (1983)
On technological forecasting in the feasibility study of capital goods investment projects
Pitkänen, Seppo, (1986)
On ruble convertibility
Pitkänen, Seppo, (1991)