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Predposylki i posledstvija demontaža socialističeskoj ėkonomiki v Rossii
Pičurin, Igorʹ Ilʹič, (2009)
Bulgaria: crisis and transition to a market economy
(1991)
Macroeconomic developments and problems in the transition process of the Bulgarian economy
Dēmopulos, Geōrgios D., (1998)
Metodologičeski problemi na rabotnata zaplata v promišlenostta
Šopov, Dimităr, (1972)