> Verlagsreihe
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Vol. 9:
The Soviet quest for economic rationality the conflict of economic and political aims in the Soviet economy, 1953-1968 Willem Keizer (Dr.Econ.Sc.)
Rotterdam: University Press, 1971
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5:
Input-output experiments the Netherlands 1948 - 1961 Christiaan Bernhard Tilanus
Rotterdam: Rotterdam U. P., 1966