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The ruble war
Smith, Howard K., (1958)
The state of the Soviet economy and prospects for introducing rouble convertibility
Lushin, Andrei S., (1991)
Economic reform and integration : proceedings of the Second International Varna Seminar "On the Way to Convertibility in Central and East European Countries", September 30 - October 3, 1990
Schmidt-Bleek, Friedrich, (1991)